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Clinical Updates
January
Caution With Ashwagandha
January 02, 2021
Ashwagandha may decrease the effectiveness of immunosuppressant drugs and, according to a recent case report, may trigger transplant rejection. Get the details in the Concerns and Cautions section of the Ashwagandha Supplements Review. The section includes information about other potential side effects of ashwagandha.
Coffee and Heart Disease
January 05, 2021
Research published this week suggests a link between a moderate coffee consumption and reduced risk of cardiovascular disease and death. Get the details in our article about Coffee and Heart Health.
Vitamin D and COVID-19
January 09, 2021
Many preliminary studies have linked adequate vitamin D levels with reduced risk of COVID-19 or less severe disease. However, a recent study did not find a benefit among people who had been supplementing with amounts generally above the recommended daily intake requirement for vitamin D. See the details in the COVID-19 section of our Vitamin D Supplements Review. Also, see our Top Picks for vitamin D.
Magnesium, Niacin and Blood Pressure
January 09, 2021
Two studies this week showed the risk of high blood pressure to be lowest among people with adequate, but not excessive, dietary intakes of magnesium and niacin.
Also, see which foods are good sources of magnesium and, separately, good sources of niacin.
Vitamin D & Risk of COVID Death
January 12, 2021
A recent study in the U.S. found that people hospitalized with COVID had much lower rates of death with certain blood levels of vitamin D. Get the details in the COVID-19 section of our Vitamin D Supplements Review. Also, see our Top Picks for vitamin D.
High-Dose Vitamin C for COVID-19?
January 12, 2021
Does high-dose vitamin C help in people with severe COVID-19? See what a new study showed in the COVID-19 section of our Vitamin C Supplements Review.
Nicotinamide Riboside to Slow Aging and Reverse NAD+ Decline?
January 12, 2021
Nicotinamide riboside, a form of niacin, has been promoted to slow aging, partially based on the belief that it raises NAD+ levels that fall with age. A new study raises doubts about this. Get the details in the Niacin section of our B Vitamin Supplement Review. Also, learn about a concern with taking too much nicotinamide riboside.
Vitamin D for Colds and Flu?
January 14, 2021
Does monthly high-dose vitamin D help prevent colds and flu or lessen symptoms in older people? Find out what a recent study showed in the What It Does section of our Vitamin D Supplement Review. Also, see our Top Pick for vitamin D.
Vitamin K & Risk of COVID Death
January 14, 2021
A marker of low vitamin K levels has been linked to a higher risk of death in people with COVID-19, according to a new study. Get the details in the COVID-19 section of our Vitamin K Supplements Review.
Coffee and Prostate Cancer Risk
January 15, 2021
Is drinking coffee associated with prostate cancer risk? Find out what a recent study suggests in our updated answer to the question: Does drinking coffee increase or decrease the risk of cancer? Can it slow cancer progression?
Avocado Oil Quality Problems Confirmed
January 19, 2021
Recent tests confirmed the finding that many avocado oils in the U.S. market contain other, cheaper oils, as reported last year. See the details, by brand, and expert tips for consumers in our answer to the question: What are the health benefits of avocado oil? Is it healthier than olive oil? Which avocado oils are best?
Vitamin D and Prediabetes
January 19, 2021
Can vitamin D supplementation improve insulin resistance in people with prediabetes? See what a recent study found in the Prediabetes section of our Vitamin D Supplements Review. Also, see our Top Picks for vitamin D.
Aspirin and Colorectal Cancer Risk
January 23, 2021
Regular use of aspirin may reduce or increase the risk of colorectal cancer depending on when it is initiated, according to observational studies and clinical trials. Get the details in our updated answer to the question: Which supplements help reduce the risk of colorectal cancer?
Strawberries for Memory?
January 23, 2021
Can daily consumption of two cups of strawberries improve memory and cognition in older men and women? See what a new study found in our answer to the question: Do any supplements really help with brain function, like memory and cognition?
Curcumin for Reducing Muscle Soreness?
January 26, 2021
Can taking curcumin (from turmeric) reduce muscle soreness related to exercise – and does it enhance muscle strengthening from exercise? See what a new study found in the Muscle Soreness and Recovery section of the Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks for turmeric/curcumin.
Ubiquinol (CoQ10) for Cognitive Function?
January 30, 2021
Does taking ubiquinol, the active form of CoQ10, improve cognition in people with mild cognitive impairment? See what a new study found in the What It Does section of our CoQ10 and Ubiquinol Supplements Review. Also see our Top Picks for CoQ10 and ubiquinol.
B12 for Diabetic Neuropathy?
January 30, 2021
Can high-dose vitamin B12 improve nerve function and reduce pain in people with neuropathy due to type 2 diabetes? See what a new study found in the B12 section of the B Vitamin Supplements Review. Also see our Top Picks for vitamin B12.
February
Vitamin C for Bleeding Gums?
February 02, 2021
Does vitamin C supplementation reduce the tendency for gums to bleed? Find out what research shows in the What It Does section of our Vitamin C Supplements Review. Also see our Top Picks for vitamin C.
Thiamin Deficiency from Bowel Disease
February 02, 2021
People with inflammatory bowel disease (such as Crohn’s or colitis) can develop thiamin (vitamin B-1) deficiency, which can lead to life-threatening brain injury, as noted in a recent review of 31 cases. Learn more about this and other causes of thiamin deficiency in the Thiamin section of our B Vitamin Supplements Review.
Garlic-Induced Burns
February 02, 2021
Be aware that garlic applied to the skin may cause severe burns, and dozens of cases have been reported. Find out which form of garlic and type of skin application is particularly dangerous in the Concerns and Cautions section of our Garlic Supplements Review.
Saffron for Mood?
February 06, 2021
Does saffron extract improve mood in people feeling down and anxious or stressed? See what a new study found in our article about Supplements for Depression and Anxiety.
Energy Drinks and Blood Pressure
February 09, 2021
Which people are more likely to have cardiovascular side effects from energy drinks? Find out what a new study showed in the Energy Drinks & Shots section of our B Vitamins Supplements Review.
Which Form of Fish Oil Is Best Absorbed
February 12, 2021
The amount of omega-3 fatty acids (EPA and DHA) that you absorb when taking fish oil depends on the form of oil and/or when you take it. A new study suggests that a certain form is better absorbed than others. Get the facts in the Forms of Fish Oil section of our Fish Oil Supplements Review. Also see our Top Picks for fish oil.
Vitamin D for Fibromyalgia?
February 12, 2021
Does vitamin D supplementation help women with fibromyalgia? See what a new study found in the What It Does section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Plant-Based Milk Caution
February 12, 2021
There may be negative effects for bones when switching to certain types of plant-based milks, according to a recent study. See the details in the Concerns and Cautions section of our Plant-Based Milks Review. Be sure to see our Top Picks among plant-based milks.
Coffee And Cholesterol
February 20, 2021
Large daily intake of coffee was linked to higher cholesterol levels in a recent study. At the same time, moderate intake of coffee may reduce cardiovascular disease risk.
Folic Acid for Cognitive Function?
February 27, 2021
Does folic acid supplementation help with cognitive function in older people? Find out what a new study showed in the Memory and Cognition section of our B Vitamin Supplements Review. Also, see our Top Picks for folic acid.
March
Diabetes Risk With Selenium
March 02, 2021
High intake of selenium from the diet or supplements has been associated with increased risk of type 2 diabetes. Get the details in the Concerns and Cautions section of our Selenium Supplements Review.
Probiotics for Ulcers?
March 02, 2021
Can probiotics help treat a common cause of stomach ulcers – H. pylori infection? Find out what new guidelines say in the What It Does section of our Probiotic Supplements Review.
For information about other supplements for peptic ulcers (and those to avoid) see our answer to the question: Do supplements help treat peptic ulcer disease? Should any be avoided?
Vitamin D for COPD and Asthma?
March 02, 2021
Does high-dose vitamin D help treat COPD or asthma? See what a new study found in the What It Does section of our Vitamin D Supplements Review. Also, see our Top Picks for vitamin D.
CBD Product Causes Positive Drug Test
March 03, 2021
A moderately high dose of a full-spectrum CBD product caused positive drug tests in 50% of people in a recent study. See the details in the Concerns and Cautions section of our CBD & Hemp Extract Supplements, Lotions, and Balms Review.
Melatonin After Stroke?
March 05, 2021
Melatonin supplementation may reduce the risk of developing delirium after a stroke, according to a new study. Get the details in the What It Does section of our Melatonin Supplements Review. Also see our Top Picks among melatonin supplements.
Ashwagandha for Exercise Endurance?
March 05, 2021
Can ashwagandha improve endurance and decrease fatigue during exercise? See what a new study found in the What It Does section of the Ashwagandha Supplements Review. Also see our Top Pick among ashwagandha supplements.
More Fish, Less Death for Some
March 09, 2021
A recent analysis found that regular consumption of fish was associated with an 18% lower risk of death over a 9-year period. Get the details in the What It Does section of our Canned Fish Review. Also see our Top Picks among canned and packaged tuna, salmon and sardines.
Coconut Oil for Lowering Blood Pressure?
March 09, 2021
Can coconut oil lower blood pressure in people with mild hypertension? See what a new study found in the What It Does section of our Coconut Oil and MCT Oil Review. Also see our Top Picks among coconut and MCT oils.
Almonds for Wrinkles?
March 09, 2021
Can eating almonds reduce facial wrinkles in postmenopausal women? See what a new study found.
Fibromyalgia Supplement?
March 13, 2021
Pycnogenol (French pine bark extract) was recently reported to reduce muscle pain and fatigue in people with fibromyalgia, but how strong is the evidence?
Does Coffee Consumption Lower Cardiovascular Risk, or Is It the Other Way Around?
March 16, 2021
New study results may undermine the association between moderate coffee consumption and reduced risk of cardiovascular disease. Find out in our updated answer to the question: Is drinking coffee good or bad for heart health?
Melatonin and Cancer
March 18, 2021
Can high-dose melatonin increase survival time or improve symptoms in people with advanced lung cancer? See what a new study found in the What It Does section of our Melatonin Supplements Review.
Also see results of a study in which melatonin was given during breast cancer treatment.
See our Top Picks among melatonin supplements.
Also see results of a study in which melatonin was given during breast cancer treatment.
See our Top Picks among melatonin supplements.
How Much Sun to Boost Vitamin D?
March 22, 2021
Find out how much sun exposure was needed in a recent study to significantly increase vitamin D levels in older people in the Getting Vitamin D from Sunlight section of our Vitamin D Supplements Review. Also see our Top Picks among vitamin D supplements.
Folic Acid and Colorectal Cancer
March 22, 2021
Do higher intakes of folic acid and other sources of folate increase or decrease the risk of colorectal cancer? It may depend on time, according to a new study discussed in the Folate section of our B Vitamin Supplements Review. Also see our Top Picks among B vitamin supplements.
MCT Oil for Mild Cognitive Impairment?
March 22, 2021
Can medium chain triglycerides (MCTs – from coconut oil) boost brain energy and improve thinking in people with mild cognitive impairment? Find out what a recent study found in the What It Does section of our Coconut and MCT Oils Review. Also see our Top Picks among coconut and MCT oils.
Birth Control and Vitamin D
March 22, 2021
Can taking birth control pills affect vitamin D levels? Find out what a recent study found in the Concerns and Cautions section of our Vitamin D Supplements Review.
Curcumin & Prostate Cancer
March 26, 2021
Does curcumin benefit men undergoing chemotherapy for prostate cancer? See what a new study found in the What It Does section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.
Vitamin D & Healing Bones
March 29, 2021
Broke a bone? A recent case shows how important sufficient vitamin D can be to properly heal a fracture. See the Bones and Fractures section of the Vitamin D Supplements Review. Also see our Top Picks among vitamin D supplements.
April
Fish Oil for Memory?
April 03, 2021
Can taking high-dose fish oil improve memory and cognitive function in older people with coronary artery disease? Find out what a recent study showed in the Age-related Cognitive Decline section of our Fish Oil Supplements Review. Also see our Top Picks among fish oil supplements.
Diabetes & Sardines
April 03, 2021
Can eating sardines reduce the risk of type 2 diabetes? See what a new study found in the What It Does section of our Tuna, Salmon & Sardines Review. Also see our Top Picks for sardines, canned salmon and tuna.
Learn about the effects of fish oil supplements on blood sugar and insulin sensitivity in our Fish Oil Supplements Review.
Vitamin D for ED?
April 05, 2021
Taking vitamin D may increase the benefits of a common medication for men, according to a recent study. Get the details in the What It Does section of our Vitamin D Supplements Review. Also see our Top Picks among vitamin D supplements.
Vitamin D & Muscle
April 08, 2021
Can taking high-dose vitamin D improve strength gains from exercise? See what a new study found in the What It Does section of our Vitamin D Supplements Review. Also see our Top Picks among vitamin D supplements.
Cranberry and UTIs
April 09, 2021
Two popular cranberry supplements promoted for urinary tract health were compared in a clinical study that showed one to be 4 times as effective as the other at preventing the adhesion of UTI-causing bacteria in urine. Get the details in our article about Cranberry and UTIs.
CBD for Low Back Pain?
April 16, 2021
Does taking CBD help in treating acute low back pain? See what a recent study found in the What It Does section of our CBD & Hemp Extract Supplements, Lotions, and Balms Review. Also see our Top Picks among CBD products.
Probiotic for Rheumatoid Arthritis?
April 19, 2021
Can taking a probiotic reduce joint swelling in rheumatoid arthritis? See what a new study found in the What It Does section of our Probiotic Supplements Review.
Collagen and Breast Cancer?
April 22, 2021
Does supplementing with collagen increase the risk of breast cancer recurrence? Learn what the evidence shows in the Concerns and Cautions section of our Collagen Supplements Review.
Olive Oil & Alzheimer's?
April 23, 2021
Can regular consumption of extra virgin olive oil improve cognition and reduce blood levels of markers associated with Alzheimer's disease? See what a recent study found in the What It Does section of our Extra Virgin Olive Oils Review. Also see our Top Picks among olive oils.
Vitamin D for Healing Fractures?
April 23, 2021
Does vitamin D supplementation improve healing of bone fractures in postmenopausal women? See what a new study found in the Bone and Fractures section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Best Curcumin Formulation?
April 26, 2021
Which curcumin formula has the best bioavailability? Learn what a recent study found when comparing the popular formulas C3 Complex, Meriva, NovaSOL and Turmipure Gold. See the Absorption and Bioavailability section of the Turmeric and Curcumin Supplements and Spices Review. Also see our Top Picks among turmeric and curcumin products.
Migraine & Watermelon?
April 26, 2021
Can watermelon or other natural foods trigger migraine? See what a recent study found in our updated article about Supplements, Foods, and Migraine.
Magnesium for Parkinson's Disease?
April 26, 2021
Can taking magnesium help treat Parkinson’s disease? Find out what research shows in the What It Does section of our Magnesium Supplements Review. Also, be aware that Parkinson's medication can affect absorption of magnesium and vice versa.
Does Kefir Lower Cholesterol?
April 30, 2021
Can drinking kefir that contains probiotics, decrease LDL cholesterol or triglyceride levels in people with metabolic syndrome? See what a new study found the Cholesterol-Lowering section of our Probiotic Supplements Review. Also see our Top Picks among probiotic supplements and drinks.
Saffron for Sleep?
April 30, 2021
Can saffron extract improve sleep in people with mild to moderate insomnia? See what a new study found in our updated answer to the question: Which supplements can help me sleep and which cause insomnia?
Curcumin and Gout
April 30, 2021
Can curcumin help people with gout by lowering blood levels of uric acid? Find out in the What It Does section of our Turmeric and Curcumin Supplements and Spices Review. Also see our Top Picks for curcumin and turmeric.
Best Form of Magnesium?
April 30, 2021
Find out how forms and formulations of magnesium differ, and their usefulness for different conditions. See the Choosing the Right Form of Magnesium section of our Magnesium Supplements Review. Also see our Top Picks for magnesium.
May
Lycopene for BPH?
May 03, 2021
Can taking lycopene improve symptoms of BPH? Find out what a recent study found in the What It Does section of our Lycopene Supplements review. Also, see our Top Pick for lycopene.
CBD for Pain?
May 03, 2021
Can CBD reduce pain severity or help people better tolerate pain? See what a recent study found in the What It Does section of our CBD & Hemp Extract Supplements, Lotions, and Balms Review.
GABA for Cognition?
May 03, 2021
Can taking GABA improve cognition? See what a new study found in our updated article about GABA (gamma-aminobutyric acid).
Grape Seed Extract for Blood Pressure?
May 03, 2021
Can grape seed extract lower blood pressure? See what a new study found in our article about the Health Benefits of Grape Seed Extract.
PEA for Joint Pain?
May 03, 2021
Can PEA (palmitoylethanolamide) reduce joint pain? Find out what a recent study found in our answer to the question: Which supplements can help with arthritis?
Glutathione for Blood Sugar?
May 03, 2021
Does taking glutathione improve blood sugar control in people with type 2 diabetes? Find out what a recent study showed in our answer to the question: Do glutathione supplements work to prevent aging or for other conditions?
Seizures from Essential Oils
May 07, 2021
Although uncommon, certain essential oils have been reported to trigger seizures in people with or without a history of seizures, even when only used topically. Get the details.
Eggs, Choline, & Heart Risk
May 07, 2021
The choline in eggs can raise levels of TMAO, a compound associated with higher risk of heart attack. A recent study compared the effects of eating eggs versus taking choline supplements on TMAO levels. Find out which increased TMAO levels the most. Also, see our Top Pick among choline supplements.
Whitener In Many Pills May Not Be Safe
May 10, 2021
Titanium dioxide, which is commonly used to whiten pills, is not safe according to the European equivalent of the FDA. Find out why in our Review Article about Inactive Ingredients.
Probiotic for Autism?
May 11, 2021
Can a probiotic supplement improve symptoms of autism spectrum disorder? Find out what a recent study showed in the What It Does section of our Probiotic Supplements Review. Also, see our Top Picks for probiotic supplements.
Black Seed Oil for Blood Sugar Control?
May 11, 2021
Find out if black seed oil improved blood sugar control in people with prediabetes in our updated answer to the question: What are the health benefits of black cumin seed (black seed) oil?
High-Dose Vitamin D?
May 14, 2021
Giving a single large dose of vitamin D doesn't help people already getting sufficient vitamin D, according to a recent study. And too much vitamin D can have negative effects. Get the details in the How Much Do You Need and How Much Is Too Much section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D supplements.
Choline for Memory?
May 14, 2021
Can choline supplementation improve cognitive function in older men and women? See what a recent study found in the Memory and Cognition section of our Choline Supplements Review. Also see our Top Picks among choline supplements as well as Concerns and Cautions with choline supplements.
Misleading Kefir Claims
May 14, 2021
Recent testing of several popular kefir beverages in the U.S. found that none contained their claimed amount of live probiotic cells -- although a popular yogurt did. See the results, by brand, in the Kefir section of our Probiotic Supplements Review. Also see our Top Picks among probiotic supplements and drinks.
Fish Oil Interaction With Medication
May 17, 2021
High-dose fish oil can significantly increase blood levels of certain immunosuppressants, according to new research. Get the details in the Concerns and Cautions section of our Fish Oil Supplements Review, which includes information about other drug interactions with fish oil.
Folic Acid for Hot Flashes?
May 17, 2021
Can folic acid supplementation reduce hot flashes or improve mood in postmenopausal women? See what a new study found in the B Vitamin Supplements Review.
How Well Do Vitamin D Supplements Raise Levels?
May 21, 2021
A recent study shows the law of diminishing returns when taking high doses of vitamin D. For details, see the How Much Do You Need section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D Supplements.
Possible Toxin in Straws
May 21, 2021
Potentially toxic compounds known as PFAS occur in some brands of dental floss and a variety of other products. A new report indicates that PFAS are also in certain drinking straws. Find out more.
Fibromyalgia Risk With Iron Deficiency Anemia?
May 21, 2021
A recent study suggests a link between iron deficiency anemia and fibromyalgia, particularly in women. Get the details in the What It Does section of our Iron Supplements Review. Also see our Top Picks among iron supplements.
Does Iron Affect Stroke Risk?
May 21, 2021
There are downsides to taking too much iron, but a recent analysis suggests that getting a basic amount of iron may reduce stroke risk for women. Get the details in the Concerns and Cautions section of our Iron Supplements Review.
Does Creatine Cause Hair Loss?
May 24, 2021
Find out if creatine supplements cause hair loss. See the Concerns and Cautions section of our Muscle & Workout Supplements Review. Also, see our Top Picks for creatine supplements.
Ginger for Stomach Flu?
May 24, 2021
Can ginger extract reduce vomiting due to stomach flu? See what a new study found in the What It Does section of the Ginger Supplements Review. Also see our Top Picks among ginger supplements, chews, and spices.
Plant Milks and Kidney Stones
May 28, 2021
Do almond, cashew, oat, soy or other plant-based milks increase the risk of kidney stones due to their oxalates? Find out in the Concerns and Cautions section of our Plant-Based Milks Review and see which carry the highest risk. Also see our Top Picks among plant-based milks.
Don't Do This If You Need Iron
May 28, 2021
If you're low in iron, be aware that many foods dramatically reduce absorption of iron from your diet. Teas can also have a major impact, as shown in a recent study. Get the details in the What to Avoid section of our Iron Supplements Review. Also see our Top Picks among iron supplements.
Citrus And Skin Cancer Risk?
May 31, 2021
Does consuming citrus fruits and juices increase your risk of skin cancer? See what a recent study found in our update to our answer about supplements, foods, and sun damage.
Vitamin D for Orthostatic Hypotension?
May 31, 2021
Can supplementing with vitamin D reduce the risk of orthostatic hypotension (low blood pressure when standing)? Find out what a recent study showed in the What It Does section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Diet And Exercise For Tinnitus?
May 31, 2021
Can dieting and exercise improve tinnitus symptoms? Find out what a recent study showed in the update to our answer about supplements and lifestyle changes for tinnitus.
June
Melatonin & Weight
June 07, 2021
Can melatonin supplementation improve sleep or reduce weight? See what a new study among nightshift workers found in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks for melatonin.
GlyNAC vs. NAC
June 07, 2021
What is GlyNAC, how does it compare to NAC, and does it have anti-aging effects? Find out in the What It Does section of our N-acetyl cysteine (NAC) Supplements Review. Also, see our Top Picks for NAC.
GLA for Inflammation?
June 07, 2021
Can taking GLA (gamma-linolenic acid) supplements help reduce inflammation? Find out in our answer to the question: Can any supplements be used to reduce inflammation in people sensitive to NSAIDs such as ibuprofen, high-dose aspirin, or naproxen?
Vitamin D and Melanoma
June 11, 2021
Can vitamin D supplementation improve outcomes in people with melanoma skin cancer? See what a new study found in the What It Does section of the Vitamin D Supplements Review.
Also see our answer to the question: Do any supplements or foods help prevent sunburn or skin damage from sun exposure? Can any increase your risk of sun-related skin damage?
Also see our answer to the question: Do any supplements or foods help prevent sunburn or skin damage from sun exposure? Can any increase your risk of sun-related skin damage?
Vitamin D for Asthma?
June 11, 2021
Can vitamin D supplementation reduce immune reactions to common asthma triggers, such as dust mites? Find out what a recent analysis showed in the What It Does section of our Vitamin D Supplements Review.
Vitamin D May Increase the Risk of Fractures from Falls
June 14, 2021
Taking doses of vitamin D above the RDA when not necessary may increase the risk of first-time falls with fractures, according to a recent analysis. Get the details in the Muscle, Balance and Falls section of the Vitamin D Supplements Review. Also see our Top Picks for low, moderate and high-dose vitamin D supplements.
Vitamin D & Triglycerides?
June 18, 2021
Can taking high-dose vitamin D increase triglyceride levels? See what a new analysis found in the Concerns and Cautions section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Glutamine and Exercise
June 18, 2021
Can glutamine supplementation decrease muscle breakdown from exercise? See what a recent study showed in the What It Does section of our Muscle & Workout Supplements Review. Also see our Top Picks among muscle and workout products.
CBD Interaction With Caffeine
June 18, 2021
Be aware that if you consume caffeine, very high doses of CBD may increase caffeine levels in the body and, potentially, caffeine side effects, according to a new study. Get the details about this and other interactions in the Concerns and Cautions section of our CBD & Hemp Extracts Review. Also see our Top Picks among CBD oils and hemp extracts.
Diet and Dementia
June 21, 2021
Which foods were linked to a lower risk of dementia in a recent study? Find out in our article about supplements and foods for Memory and Cognition.
DHA & Preterm Birth
June 21, 2021
Can the risk of preterm birth be reduced when pregnant women supplement with an the omega-3 fatty acid? See what a new study found in the What It Does section of our Fish Oil Supplements Review. Also see our Top Picks among fish oil supplements, including prenatal products.
Avocado & Soy Unsaponifiables for Osteoarthritis?
June 21, 2021
Can avocado and soy unsaponifiables (ASU) reduce pain and stiffness in people with knee or hip osteoarthritis? Find out in our updated answer to the question: Which supplements can help with arthritis?
Caution With Too Much Magnesium
June 25, 2021
Magnesium can be an effective laxative, but taking too much magnesium can be very dangerous, as was recently reported. Get the details in the Concerns and Cautions section of our Magnesium Supplements Review.
Also see our answer to the question: Which supplements can help treat constipation?
Also see our answer to the question: Which supplements can help treat constipation?
Whey vs Rice and Potato Protein
June 26, 2021
Whey, rice and potato proteins were found to have different effects on blood sugar and insulin levels in a recent study. Find out how they differ. You can also learn more about these and other protein sources in the ConsumerTips section of our Protein Powders, Shakes and Drinks Review. Also see our Top Picks among protein powders.
Hyaluronic Acid for Wrinkles?
June 27, 2021
Does supplementing with hyaluronic acid reduce wrinkles or improve skin elasticity in middle-aged men and women? See what a new study found in the Aging Skin and Wrinkles section of our Collagen Supplements Review. Also see our Top Picks for collagen supplements for skin and for joints.
Chia Risk
June 28, 2021
Don't overdo it with chia seeds, as they contain compounds that, in excess, can increase the risk of kidney stones and kidney injury. Get the details in the Concerns and Cautions section of our Chia Seeds Review. Also, see our Top Picks among chia products.
July
Probiotics for C. difficile infection?
July 02, 2021
New guidelines recommend against probiotics for treating or preventing C. difficile infection, one cause of diarrhea in people taking antibiotics. Find out why in the What They Do section of our Probiotic Supplements Review.
Fish Oil for Migraine?
July 06, 2021
Can the risk of migraine headache be reduced by increasing intake of omega-3 oils from fish? Find out what a recent study showed in the Migraine Headache section of our Fish Oil Supplements Review. Also see our Top Picks among canned tuna, salmon and sardines.
Liver Injury With Ashwagandha
July 09, 2021
Although rare, liver injury has been linked to the use of certain ashwagandha supplements. Another case was recently reported. Get the details in the Concerns and Cautions section of the Ashwagandha Supplements Review.
Niacin for Parkinson's?
July 09, 2021
Can niacin supplementation improve symptoms or slow decline in people with Parkinson's disease? See what a new study found in the Niacin section of our B Vitamin Supplements Review.
Also see our answer to the question: Do supplements help with Parkinson's disease treatment or prevention?
Also see our answer to the question: Do supplements help with Parkinson's disease treatment or prevention?
Hidden Forms of B-12 Deficiency
July 12, 2021
Vitamin B-12 deficiency can occur even in people with "normal" blood levels of B-12, as was most recently reported in a 30-year-old man. Learn more, including the wide range of symptoms of B-12 deficiency and information about testing for B-12 deficiency in our B Vitamin Supplements Review. Also see our Top Picks for B-12.
Magnesium for Leg Cramps?
July 12, 2021
Can magnesium supplementation reduce leg cramps? See what a recent analysis of the data showed for leg cramps in pregnant women. Also see the evidence for use by older men and women in our Magnesium Supplements Review.
Also see our answer to the question: Do magnesium creams, sprays and oils help with muscle pain and cramps? How about supplements?
Also see our answer to the question: Do magnesium creams, sprays and oils help with muscle pain and cramps? How about supplements?
Melatonin and Autism
July 12, 2021
Can melatonin supplementation improve sleep, behavior, or mood in children with autism spectrum disorder? See what a new study found in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks among melatonin supplements.
Fish Oil and Fatty Liver Disease?
July 16, 2021
Can taking fish oil over a lifetime increase the risk of developing fatty liver disease? Find out in the Concerns and Cautions section of the Fish Oil Supplements Review.
Echinacea for Anxiety?
July 16, 2021
Can echinacea reduce symptoms of mild to moderate anxiety? See what a recent study found in the What It Does section of our Echinacea Supplements Review. Also see our Top Picks among echinacea supplements.
Also see our answer to the question: What are the best supplements for depression and anxiety?
Also see our answer to the question: What are the best supplements for depression and anxiety?
Magnesium & Memory
July 20, 2021
Does supplementation with magnesium (as magnesium L-threonate, Magtein) improve cognition in people with dementia? Find out in the Dementia & Cognition section of our Magnesium Supplements Review.
Calcium, Vitamin D & Heart Risk
July 20, 2021
Does taking vitamin D reduce the cardiovascular risks associated with calcium supplementation? See what a new study found in the Concerns and Cautions section of our Calcium Supplements Review. Also see our Top Picks among calcium supplements.
Coffee and Heart Rhythm Risk
July 20, 2021
Is coffee consumption associated with the risk of atrial fibrillation and other arrythmias? See the latest findings in our article about Coffee and Heart Health.
Collagen for Joint Pain?
July 23, 2021
Can collagen supplementation reduce joint pain or stiffness in the knee, hip or wrist? See what a new study found in the Joint Pain section of our Collagen Supplements Review. Also see our Top Picks among collagen supplements for joints and for skin.
Cranberry for H. pylori Infection?
July 23, 2021
Can cranberry juice help treat H. pylori infection – a cause of stomach inflammation and ulcers? See what a new study found in the What It Does section of our Cranberry Juices and Supplements Review. Also see our Top Picks among cranberry juices and supplements.
Vitamin D and Pregnancy Outcomes
July 23, 2021
Can taking vitamin D during pregnancy reduce the risk of preterm labor, low birth weight or pregnancy loss? Find out what a recent study showed in the Pregnancy section of our Vitamin D Supplements Review. Also, see our Top Picks among vitamin D supplement.
Diatomaceous Earth for Cholesterol?
July 23, 2021
Can supplementing with diatomaceous earth lower cholesterol levels and is it safe? Find out in our updated answer to the question: Which supplements can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Sulfa Allergy to NAC?
July 23, 2021
Can people with a sulfa allergy (an allergy to sulfonamide drugs) use NAC, which contains sulfur? Find out in the Concerns and Cautions section of our N-Acetylcysteine Supplements Review.
Cholestene Update
July 24, 2021
The FDA recently advised consumers not to use the popular red yeast rice product, Cholestene, based on its testing. We asked the FDA what it actually found in Cholestene. Find out what we learned in the Update to our Red Yeast Rice Review.
Fish Oil and Colon Cancer
July 26, 2021
Does fish oil supplementation decrease the risk of abnormal colorectal growths or other changes associated with colorectal cancer? See what a new study found in the Cancer section of our Fish Oil Supplements Review.
Danger from Too Much Zinc
July 26, 2021
Getting too much zinc can cause neurologic symptoms, and this can occur even with zinc-containing dental adhesives. Learn more, including the symptoms, in the Concerns and Cautions section of our Zinc Supplements & Lozenges Review.
Cranberry for Men?
July 26, 2021
Can cranberry extract reduce urinary frequency, urgency, and infections in men with benign prostatic hyperplasia (BPH)? Find out in the What It Does section of our Cranberry Juices and Supplements Review. Also see our Top Picks among cranberry juices and supplements.
Diets for Fatty Liver Disease
July 26, 2021
Are some diets more beneficial than others for fatty liver disease? Find out in our CL Answer about supplements and diets for fatty liver disease.
What Is Omega-10?
July 26, 2021
What is an "omega-10" supplement and are these products better than omega-3 fatty acid supplements such as fish oil? Find out in our Fish Oil Supplements Review.
Statins Plus Fish Oil?
July 30, 2021
Can taking high-dose omega-3s decrease triglyceride levels in people taking a statin drug? See what a new study found in the Taking With Statins section of our Fish Oil Supplements Review. Also see our Top Picks among fish oil supplements, including highly concentrated products.
How Forms of Magnesium Compare
July 30, 2021
Magnesium supplements are used to raise magnesium levels (which requires good absorption from the gut), as laxatives, and as antacids. The best form of magnesium depends on why you're taking it. To help you choose the right form, we've put together a magnesium comparison table. Also see our Top Picks among magnesium supplements.
Coffee And Fatty Liver Disease?
July 30, 2021
Can drinking coffee help prevent fatty liver disease and liver fibrosis (scarring)? Find out what research suggests in our CL Answer about supplements and diets for fatty liver disease.
Pesticides in Milk Thistle?
July 30, 2021
Some milk thistle products may be contaminated with pesticides, according to a study of more than 25 commercially available supplements. Learn more in the Quality Concerns section of our Milk Thistle Supplements Review.
Improving Berberine Absorption?
July 30, 2021
Learn if special formulations have greater benefit than berberine alone, in the ConsumerTips section of our Berberine and Goldenseal Supplements Review.
Bergamot for lowering cholesterol?
July 30, 2021
Can supplementing with citrus bergamot reduce high cholesterol levels? Find out what the research is showing in our updated answer to the question: Which supplements can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Juices for Kidney Stones?
July 30, 2021
Are cranberry juice or apple cider vinegar good sources of citrate to lower the risk of kidney stones? Find out in our updated answer to the question: Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?
Gynostemma for Weight?
July 30, 2021
Can taking Gynostemma pentaphyllum extract help reduce weight? We've added information about this to our article about Gynostemma (which is also promoted for diabetes and high cholesterol treatment).
August
Vitamin D for IBS?
August 02, 2021
Can vitamin D supplementation reduce the severity of symptoms in people with irritable bowel syndrome (IBS)? See what a new study found in the What It Does section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Coffee and Dementia?
August 02, 2021
Can drinking coffee increase or decrease the risk of dementia? A cause-and-effect relationship has not been established but some striking associations were recently found based on consumption levels. We've added the details to the Safety section of our article about Coffee and Heart Health.
Waning Vaccine Efficacy?
August 02, 2021
If you were vaccinated in January or February, should you be concerned about waning efficacy?
Hospitalization or Death in Vaccinated People
August 02, 2021
How likely is hospitalization or death from COVID in vaccinated people? See what recent data shows.
Vaccine Adverse Events in Adolescents
August 02, 2021
How common are adverse events in adolescents who get vaccinated? See what real-world data shows.
New Vaccine Recommendations for Women Who are Pregnant or Breastfeeding
August 02, 2021
There are new vaccine recommendations for women who are pregnant or breastfeeding. See what's changed.
Tests to Detect COVID Variants?
August 02, 2021
Can standard COVID-19 tests identify which variant caused an infection? Find out in our updated CL Answer about tests for COVID-19.
Ivermectin
August 02, 2021
Find out why ivermectin is generally not recommended for COVID-19 outside of clinical trials, despite some research suggesting a benefit.
Caution With Earl Grey Tea and Bergamot
August 05, 2021
Consuming very large amounts of bergamot (which is found in supplements and teas, such as Earl Grey) may cause adverse effects. Get the details in the Bergamot section of our article about Supplements for Lowering Cholesterol.
COVID Transmission Among Vaccinated?
August 06, 2021
Can you catch COVID from someone who is vaccinated if you are vaccinated? Find out what data suggests in our article about COVID-19 Vaccines.
Vaccination in People Who've Already Had COVID
August 06, 2021
How much protection do vaccines provide to people who've already had COVID? See what a recent study suggests in our article about COVID-19 Vaccines.
COVID Vaccination in People With Neurologic Conditions
August 06, 2021
Should people with neurologic conditions – including dementia, Alzheimer's disease, MS, and epilepsy – get vaccinated? Find out what experts recommend.
Curcumin for Indigestion?
August 06, 2021
How well does curcumin (from turmeric) improve digestive symptoms such as indigestion, diarrhea or constipation? See what a new study found in the What It Does section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.
Bergamot for Fatty Liver?
August 06, 2021
Can bergamot help reduce cholesterol or liver fat in people with fatty liver disease? Find out in our updated answer about Supplements and Diets for fatty Liver Disease.
Peppermint Oil for IBS?
August 06, 2021
Can peppermint oil supplements improve symptoms in people with irritable bowel syndrome (IBS)? See what a new study found in our updated article about Peppermint Oil and IBS.
Vitamin D and Palliative Cancer Care
August 06, 2021
Can high-dose vitamin D supplementation in palliative care cancer patients reduce pain and fatigue? Find out what a recent study showed in the Cancer section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
Pfizer vs. Moderna for Breakthrough Delta Infections
August 09, 2021
A recent study suggests that Pfizer and Moderna are not equal in protecting against Delta infection. See the details in our article about COVID Vaccines.
COVID Risk & Immune Disease
August 09, 2021
Are people with rheumatoid arthritis, psoriatic arthritis, lupus, and other immune diseases at higher risk of severe re-infections? See the latest findings.
Asymptomatic COVID & Transmission
August 09, 2021
COVID Home Test Limitations
August 09, 2021
COVID-19 home tests, like the 15-minute Abbott BinaxNOW, have significant limitations in real-world use according to a recent study.
Pulse Oximeter Accuracy
August 09, 2021
Can you get an accurate pulse oximeter measurement while wearing nail polish?
Also learn how to get the most accurate reading with pulse oximeters and see our choice for best home pulse oximeter.
Also learn how to get the most accurate reading with pulse oximeters and see our choice for best home pulse oximeter.
Herbal Treatment
August 09, 2021
Are traditional Chinese medicines, such as astragalus, helpful in treating or preventing COVID-19? Find out what reviews of the research have concluded in our article about Supplements and COVID-19.
Vitamin D & Risk of Falls
August 09, 2021
A recent study showed that high-dose vitamin D may increase the risk of falls for certain people. Get the details in the Muscle, Balance, and Falls section of our Vitamin D Supplements Review.
Coffee and Arterial Stiffness
August 09, 2021
Does drinking coffee increase arterial stiffness, a predictor of heart disease? Find out what research shows in our updated answer about Coffee and Heart Health.
Best Form of B-12 for Vegans?
August 09, 2021
What form of vitamin B-12 appeared best at raising B-12 levels among people on plant-based diets in a new study, and how did this compare to getting B-12 from plant-based foods? Find out in the B-12 section of our B Vitamin Supplements Review. Also see our Top Picks for vitamin B-12.
Hip Fracture Risk With Vegan Diet
August 09, 2021
Does following a vegan diet increase the risk of hip fracture in middle-aged and older women, and does supplementing with calcium and vitamin D help? See what a recent study found in the "What It Does" sections of our Calcium Supplements Review and Vitamin D Supplements Review. Also see our Top Picks among calcium supplements and vitamin D supplements.
Probiotic for Indigestion?
August 09, 2021
Can taking a probiotic with a meal decrease indigestion, gas or stomach pain after eating? See what a new study found in the What They Do section of our Probiotic Supplements Review. Also, see our Top Picks among probiotics for gastrointestinal symptoms and other uses.
Danger With Too Much B-6
August 13, 2021
A CL member recently told us about a friend who developed progressively worsening neuropathy (nerve damage) after taking very high dose vitamin B-6. It's important to be aware of the upper daily limit for vitamin B-6 and that taking too much can cause nerve damage, as well as skin lesions and other adverse effects, as discussed in detail in our B Vitamin Supplements Review.
Vietnamese Cinnamon Concern
August 13, 2021
Our tests of cinnamon found higher concentrations of the toxin coumarin in Vietnamese cinnamon. A similar finding was recently reported. Learn more in our Cinnamon Supplements & Spices Review – and see how products compared in our tests.
How to Get a Third Vaccine Dose
August 13, 2021
A 3rd dose of the mRNA vaccines was authorized for immune suppressed individuals. Find out who can get it and how.
Which Immunosuppressants Reduce Vaccine Protection?
August 13, 2021
Find out which immunosuppressants may reduce vaccine protection in our article about COVID Vaccines.
Pfizer Vs. Moderna Against Delta Variant
August 13, 2021
See how Pfizer compared to Moderna against the Delta variant in the latest study.
J&J Vaccine and the Delta Variant
August 13, 2021
Did the J&J vaccine protect against severe Delta infection in the latest study? Find out now.
COVID Vaccination During Pregnancy
August 13, 2021
Vaccination is now recommended during pregnancy. Get the latest details in our article about COVID Vaccines.
Myocarditis in Adolescents
August 13, 2021
Get the latest information about vaccine-related myocarditis in adolescents.
Who's Mostly Likely to Develop Myocarditis After Vaccination
August 13, 2021
Find out which group of people (it's not adolescents) are most likely to develop myocarditis after the Pfizer or Moderna vaccines and how the risk compares to their not being vaccinated.
J&J Vaccine Blood Clot, Guillain-Barre Risk
August 13, 2021
How common are blood clots and low platelet counts or Guillain-Barre syndrome after the J&J vaccine?
Sunscreens - What to Look Out For
August 16, 2021
In case you missed it, we recently posted a list of sunscreens found to contain a carcinogenic compound not listed on their labels. We have also added information about ingredients that are on labels that you might want to look out for. See the details in our article: "Which compounds in sunscreen should I be concerned about?"
Also see our article about benzene -- another carcinogen found in sunscreens -- that lists benzene amounts in hundreds of sunscreens and after-sun products.
Also see our article about benzene -- another carcinogen found in sunscreens -- that lists benzene amounts in hundreds of sunscreens and after-sun products.
CBD for Burnout?
August 16, 2021
Healthcare workers were given daily CBD to see if it reduced symptoms of emotional exhaustion and burnout. Did it work and was it safe? See the findings in the What It Does section of our CBD Oil & Hemp Extracts Review.
Diets to Reduce Migraine?
August 16, 2021
Certain diets are associated with fewer and less severe migraine attacks, according to a recent study. Get the details in our updated answer to the question: Do any supplements or foods help with migraine? Do any trigger migraine?
NAC & Body Odor
August 16, 2021
Can supplementing with N-acetyl-cysteine (NAC) cause body odor? Find out in the Concerns and Cautions section of our NAC Supplements Review.
Mixing Vaccines
August 16, 2021
Does mixing vaccines provide stronger immunoprotection than a single type? See what studies are showing.
Extra Vaccine Dose
August 16, 2021
You can get an extra vaccine dose if you are immunocompromised or take medication that suppresses your immune system. Get the details.
COVID Risk of Death
August 16, 2021
Which factors increase the risk of death from COVID-19 among adolescents?
COVID Infectiousness
August 16, 2021
Be aware that even without symptoms, people with COVID-19 can emit high amounts of virus as aerosols, according to recent research. Get the details and find out what researchers recommend to help protect yourself when indoors.
Diabetes and Fruit Intake
August 18, 2021
Eating whole fruits is associated with reduced risk of type 2 diabetes and better blood sugar control. But how much fruit is associated with greatest benefit, and what's the role of apples, bananas, and citrus fruits? See what a recent study showed. It's all in our article: Which supplements and foods can help lower or control my blood sugar?
Mediterranean vs. Low-Fat Diet for Arteries
August 20, 2021
A long-term study in people with coronary heart disease compared the effects of a Mediterranean diet rich in olive oil with a low-fat diet. Find out which diet decreased atherosclerosis (plaque build-up in arteries) in the Cardiovascular Disease section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
Bacopa for Better Sleep and Mood?
August 20, 2021
Does Bacopa extract improve sleep or mood? Find out what a recent study showed in our updated answer to the question: Does Bacopa extract improve memory, mood or sleep? Is it safe?
Omega-7s for Muscle Pain?
August 20, 2021
Can supplementation with omega-7 fatty acids (from fish oil) reduce muscle pain or inflammation in the body? See what a new study found, and learn if omega-7s have other benefits in the omega-7 section of our Fish Oil Supplements Review. Also see how much omega-7 we found in popular fish oil products.
COVID Vaccine 8-Month Booster
August 21, 2021
Learn about the waning efficacy of COVID vaccines, why the booster is being offered, why at 8 months, as well as who can get it, when and how.
COVID Vaccine and Anemia
August 21, 2021
Should people with anemia get vaccinated?
Inferior Turmeric on Amazon
August 22, 2021
Tests of turmeric and curcumin supplements purchased on Amazon showed that many provided very little curcumin, a key compound in turmeric, and other problems. Get the details in the Quality Concerns section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.
Air Cleaners for Wildfire Smoke
August 23, 2021
Find out which types of portable air cleaners are best for wildfire smoke. Also see our top picks among air cleaners (including for use in reducing viral exposure).
Parkinson's Disease: 5-HTP for Sleep?
August 23, 2021
Can supplementation with 5-HTP reduce sleep disturbances in people with Parkinson's disease? See what a recent study found in the What It Does section of our L-Tryptophan and 5-HTP Supplements Review.
Also see our answer to the question: Do supplements help with Parkinson's disease treatment or prevention?
Also see our answer to the question: Do supplements help with Parkinson's disease treatment or prevention?
Pfizer Vaccine Approved
August 23, 2021
Learn about approval of the Pfizer vaccine and find out how approval differs from authorization, who it is approved for, and whether doctors should prescribe it for unapproved uses.
Ivermectin
August 24, 2021
More information highlights why ivermectin should be used for COVID-19 only within clinical trials. Get the details.
PQQ for Cognition?
August 24, 2021
Can supplementation with PQQ improve memory and cognition in older men and women? See what a recent study found, and learn more about PQQ and how it compares to CoQ10, in our updated answer to the question: What is PQQ? Does it help with aging and memory? Is it similar to CoQ10?
Supplement for Better Exercise Performance?
August 24, 2021
Can taking a modified form of CoQ10 known as mitoquinone improve exercise performance in middle-aged men? See what a recent study found in our CoQ10 and Ubiquinol Supplements Review, which also includes information about a potential concern with mitoquinone.
Withdrawal of CDC COVID PCR Test?
August 27, 2021
Is it true that the current PCR tests for the virus are not accurate and the CDC is withdrawing its own PCR test? Get the facts.
Biotin Interference With COVID Tests
August 27, 2021
Be aware that taking biotin (vitamin B-7) may interfere with COVID-19 antibody tests. Learn which tests are affected. Also find out about other laboratory tests (including thyroid and cardiovascular tests) that can be affected by biotin.
15-Minute Home COVID Tests
August 27, 2021
Demand for 15-minute home tests for COVID is increasing. Learn when and how to use these tests.
Therapy for Tinnitus?
August 27, 2021
A recent study tested whether cognitive behavioral therapy (CBT) could reduce the severity of tinnitus and tinnitus-related issues, such as trouble sleeping. See the results in our updated answer to the question: Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
Can Ginseng Boost Cognition?
August 27, 2021
Can taking American ginseng improve cognitive function in young people? See what a recent study found in the What It Does section of our Ginseng Supplements Review. Also see our Top Picks among American ginseng supplements.
Six or Eight Months for mRNA COVID Booster?
August 27, 2021
Will mRNA booster vaccines be given as early as 6 months after the first dose, or at 8 months as had been officially announced? Find out in our article about COVID Vaccines.
Comirnaty vs. Pfizer
August 27, 2021
Is the recently FDA-approved Pfizer vaccine (called Comirnaty) different from the previously authorized Pfizer vaccine?
Are COVID Booster Doses Different?
August 27, 2021
Are third dose vaccines (for immune-compromised individuals) different from the first two doses?
J&J Booster Vaccine
August 27, 2021
Data suggests that a booster dose of the J&J vaccine can significantly boost immune protection against COVID-19. Get the details.
Myocarditis Risk
August 27, 2021
Find out how the risk of myocarditis from vaccination compares to the risk of myocarditis from COVID.
Cranberry Interaction
August 28, 2021
Cranberry juice and supplements may increase the risk of bleeding in people taking the blood-thinner warfarin in some situations. Get the details about this and other drug interactions with cranberry in the Concerns and Cautions section of our Cranberry Juices and Supplements Review.
Caveat With Prescription Fish Oil Study
August 30, 2021
Some of the cardiovascular benefit reported for a prescription fish oil may have actually been due to a problem with the placebo to which it was compared, according to new research. Get the details in the Prescription Fish Oil vs Supplements section of our Fish Oil Supplements Review. Also see our Top Picks among fish oil supplements.
PFAS in Processed Foods?
August 30, 2021
Researchers recently measured amounts of toxic chemicals called PFAS in processed foods sold throughout the U.S. See what they found in our updated article about PFAS in dental floss, water and foods.
Spirulina for Type 2 Diabetes?
August 30, 2021
Does taking spirulina help control blood sugar levels in people with type 2 diabetes? See what a study found in the What They Do section of our Greens and Whole Food Powders and Capsules Review.
Magnolia Bark and Alzheimer's
August 30, 2021
Can taking magnolia bark extract improve learning and memory in those with Alzheimer’s disease? Find out what evidence suggests in our article about supplements for memory and cognition.
Chia Seeds and Estrogen
August 30, 2021
Do chia seeds contain plant estrogens and, if so, should I be concerned as I have a family history of breast cancer? See the answer in the Concerns and Cautions section of our Chia Seeds Review.
Risk of Hospitalization With COVID
August 30, 2021
If you are unvaccinated, how much more likely are you to be hospitalized with COVID than if you were vaccinated? See what recent data shows.
Adolescents & COVID: Myocarditis vs. Hospitalization
August 30, 2021
How does the risk of myocarditis from vaccination compare to the risk of hospitalization from COVID among adolescents?
Off-Label Use of COVID Vaccine?
August 30, 2021
Find out why vaccine administrators may decline to give COVID shots for off-label use.
Delta Variant Accounts for Most COVID Cases
August 30, 2021
Be aware that the Delta variant, which is more transmissible than other variants, now accounts for more than 98% of COVID cases in the U.S. See the latest numbers.
N95 Mask Quality Problem
August 30, 2021
Federal approval was recently revoked for all N95 masks made by a certain manufacturer. Get the details in our article about the Best Masks to Prevent COVID-19.
September
Benefit from Booster?
September 01, 2021
How much benefit does a booster provide? See what two new reports suggest.
Who Will Be Offered Boosters?
September 01, 2021
See the latest information about who will be offered booster shots for the Pfizer, Moderna, and J&J vaccines.
Myocarditis Fatalities
September 01, 2021
How often has vaccine-related myocarditis led to fatalities among young people?
High Allergy Risk & Vaccination
September 02, 2021
Can people with high allergy risk get safely vaccinated? See what the data is showing.
Fibromyalgia After COVID
September 02, 2021
How common is fibromyalgia (widespread musculoskeletal pain) after COVID-19? Find out what a study showed.
Kidney Injury and COVID
September 02, 2021
Kidney injury appears to be more common in some people who have had COVID, according to a recent study.
Who Will Be Offered Boosters?
September 02, 2021
See the latest information about who will be offered booster shots for the Pfizer, Moderna, and J&J vaccines.
Saffron for Better Sleep?
September 03, 2021
Can taking saffron extract improve sleep in people with insomnia? See what a recent study found in our updated article about Supplements and Sleep.
Vitamin C & Statins
September 04, 2021
Does taking vitamin C reduce the cholesterol-lowering effects of statins? Find out in the What to Consider When Using section of our Vitamin C Supplements Review.
COVID Symptoms in Breakthrough Cases
September 06, 2021
Fully vaccinated people who get COVID are much less likely to experience symptoms, as well as long-COVID, than unvaccinated people with COVID to according to a recent study. Get the details.
Walnuts and Cholesterol
September 06, 2021
See if eating a small amount of walnuts every day helped lower cholesterol in older people in a recent study.
Also see our complete answer to the question: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Also see our complete answer to the question: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
EVOO vs. Regular Olive Oil
September 06, 2021
Extra virgin olive oil may be more beneficial than regular olive oil for blood sugar control and satiety, according to a recent study. Get the details in the Insulin Control and Blood Sugar section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
Collagen for Wrinkles
September 06, 2021
Can taking hydrolyzed collagen in low daily doses reduce wrinkles and improve skin hydration in older women? Find out what a recent study showed in the What It Does section of our Collagen Supplements Review. Also, see our Top Picks among collagen supplements for skin wrinkles.
An Avocado a Day?
September 06, 2021
Does eating an avocado with your meal help reduce abdominal fat or weight, or improve blood sugar or insulin control? See what a new study found in the What It Does section of our Avocado Oil Review. Also see our Top Picks among avocado oils.
Reducing Virus Indoors
September 07, 2021
There are simple steps you can take to help reduce SARS-CoV-2 virus indoors according to a new report.
Vaccine Boosters
September 10, 2021
Booster doses for the Pfizer vaccine are to begin the week of September 20, 2021. Learn how to find a site to get a booster shot once they are offered. Also, if you received the Moderna vaccine, find out if you should get a Pfizer booster instead.
Flu Vaccine & COVID
September 10, 2021
Learn if you need to time your flu vaccine around your COVID vaccine and how the flu vaccine may affect you if you later get COVID. Also find out when kids should get a flu shot.
Who Is Required to Get Vaccinated?
September 10, 2021
Find out if you're part of the U.S. workforce that may soon be required to get vaccinated.
Mu Variant
September 10, 2021
What is the Mu variant and how prevalent is it in the U.S.? Find out in our article about COVID Vaccines.
Hunter HP800 Air Purifier Review
September 10, 2021
See our review of the Hunter HP800 Multi-Room Large Console Air Purifier, as well as our Top Picks among air purifiers, in our article about the Best Air Purifiers for Reducing the Spread of COVID.
LG PuriCare Mini Air Purifier Review
September 10, 2021
See our review of the LG PuriCare Mini Air Purifier, as well as our Top Picks among air purifiers, in our article about the Best Air Purifiers for Reducing the Spread of COVID.
Citrulline for Strength?
September 13, 2021
Find out if citrulline supplementation improved muscle strength or endurance in older people in recent study. (This information is in the Citrulline section of our L-Arginine Supplements Review, as citrulline is converted to arginine in the body and it is often sold in combination with arginine).
Best Way to Store Olive Oil
September 13, 2021
Even if unopened, it is best to store extra virgin olive oil (EVOO) at the right temperature, according to results of a recent study. Get the details on the best way to store EVOO in our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
L-Arginine for COVID?
September 13, 2021
Did L-arginine supplementation help people with severe COVID-related pneumonia? See what a new study found in the What It Does section of our L-Arginine Supplements Review.
Also see: Do any supplements help with the coronavirus (COVID-19)?
Also see: Do any supplements help with the coronavirus (COVID-19)?
Vaccines Compared: Pfizer, Moderna, or J&J
September 13, 2021
See which vaccine (Pfizer, Moderna, or J&J) now appears to provide greatest protection against COVID-19-related hospitalization.
Who Needs a Booster Dose?
September 13, 2021
Will everyone need a booster dose? Find out what experts are saying.
COVID Vaccination and Menstruation
September 13, 2021
Does COVID-19 vaccination affect menstruation? Find out what is known in our article about COVID-19 Vaccines.
NAC and Lung Cancer
September 13, 2021
Was there a study that showed that animals given NAC developed lung cancer? Find out what research in animals suggested in the Concerns and Cautions section of our NAC supplements Review.
Vitamin C For Fatty Liver?
September 16, 2021
Can taking high-dose vitamin C improve liver function or insulin resistance in people with NAFLD (non-alcoholic fatty liver disease)? Find out what a recent study showed in the What It Does section of our Vitamin C Supplements Review. Also see our Top Picks among vitamin C supplements.
Can Collagen Lower Blood Sugar?
September 16, 2021
Can taking collagen supplements lower blood sugar levels? Find out what research suggests in the What It Does section of our Collagen Supplements Review. Also see our Top Picks among collagen supplements.
Vaccines and Shoulder Injury
September 16, 2021
Shoulder injury from vaccination is not common but can happen. Find out what steps you can take to help avoid it. Also learn about "COVID arm."
Help for Arthritic Hands?
September 17, 2021
A study tested whether moderate doses of CBD could reduce the pain of hand osteoarthritis or psoriatic arthritis. See what the study found in the Pain section of our CBD Oil and Hemp Extracts Review.
Pfizer Boosters for Some
September 17, 2021
Late last week, an FDA panel recommended Pfizer boosters, but only for certain individuals. Find out who's recommended to get a booster and what this means for those who were vaccinated with Moderna or J&J vaccines.
For Knee Pain, Try This.
September 18, 2021
A six-month exercise program was shown to reduce knee pain in 72% of people with osteoarthritis. It’s a completely free program that anyone can do from home. Get the details in the ConsumerTips section of our Joint Supplements Review (although no supplements are involved in the program).
Declining Vaccine Protection
September 20, 2021
New research suggests declining protection over 4 months with just one of the mRNA vaccines. See how Pfizer and Moderna compared.
J&J Protection Over 4 Months
September 20, 2021
See how the J&J vaccine fared in terms of protection over 4 months, and how much protection is provided by a second dose of J&J.
Medicine Helps Prevent COVID Symptoms
September 20, 2021
An FDA-authorized medicine was shown to reduce the risk of developing symptoms of COVID when given early to people testing positive for COVID. Get the details in our answer to the question: Do any treatments reduce the risk of infection after you've been exposed to someone with COVID-19?
Helichrysum Oil for Tinnitus?
September 20, 2021
Can applying helichrysum oil on or behind the ear improve tinnitus? Find out in our answer to the question: Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
Iron Dose Falls
September 20, 2021
Recommended doses for correcting iron deficiency may be too high, according to recent guidelines. Get the details in the ConsumerTips section of our Iron Supplements Review. Also, see our Top Picks among iron supplements.
Enzyme Supplements for Eye Floaters?
September 20, 2021
Can enzyme supplements (bromelain, papain and ficin) reduce eye floaters? Find out what a recent study suggests in the What They Do section of our Digestive Enzyme Supplements Review.
Also see our answer to the question: Do any supplements help prevent or reduce eye floaters?
Also see our answer to the question: Do any supplements help prevent or reduce eye floaters?
PFAS Effects in Breast Milk
September 20, 2021
Higher concentrations of toxic chemicals known as PFAS in mothers appears to alter the fat composition of breast milk, according to a recent study. Learn more, including how this may affect infant growth, in our updated article about How to Avoid PFAS, which includes information about PFAS in dental floss, foods and bottled water.
Retinoid Cream Side Effects
September 23, 2021
Last week, we answered a reader's question about whether retinoid creams reduce bone density or increase fracture risk. They don’t. But they can cause other side effects, of which you should be aware. Details are in the Topical creams, gels, and serums section of our Vitamin A Supplements Review.
Resveratrol for Mild COVID?
September 23, 2021
A recent study gave resveratrol to people with mild COVID. Find out if it reduced hospitalization, ER visits or pneumonia in the What It Does section of our Resveratrol Supplements Review.
See information about the use of other supplements for COVID.
See information about the use of other supplements for COVID.
Antibody Therapy for COVID
September 23, 2021
Due to a shortage in supply, there has been a change in how antibody therapies for COVID are being distributed in the U.S. Find out how this may affect your ability to access these therapies.
Why NAC Is Coming Off Retail Shelves
September 23, 2021
Find out why some major retailers are no longer selling N-acetyl cysteine (NAC) supplements. See the ConsumerTips section of our NAC Supplements Review.
Booster Side Effects
September 24, 2021
See how the side effects of a Pfizer booster dose compare to those of the second shot and who is mostly likely to experience side effects.
Who Should Get the Pfizer Booster?
September 24, 2021
Find out who should get a Pfizer booster, according to the CDC.
Dark Chocolate for Mood?
September 24, 2021
A recent study investigated the effects of consuming dark chocolate on mood. The effect depended on cocoa level. See the results in the Mood and Stress section of our Dark Chocolate and Cocoa Review. Also see our Top Picks among dark chocolate bars and cocoa products.
Vitamin D Supplements: Same Dose, Different Results?
September 24, 2021
Taking the same dose of vitamin D may lead to greater increases in vitamin D status in some people than in others, according to recent research. Find out why in the How Much Do You Need section of our Vitamin D Supplements Review. Also see our Top Picks among vitamin D supplements.
Leg Cramp Causes and Treatments?
September 27, 2021
Find out if common medications can cause nighttime leg cramps. Also find out if supplements or topical products such as magnesium creams can help.
Supplements During Chemotherapy?
September 27, 2021
If you are getting chemotherapy, experts now recommend avoiding acetyl-L-carnitine. Also, see what they have to say about using alpha-lipoic acid, vitamin B-12 and vitamin E.
COVID + Flu Shot Timing
September 27, 2021
Find out if you can get a flu shot and COVID-19 shot at the same time and how this may affect side effects.
Flu Shot and Risk of COVID Complications
September 27, 2021
Getting a flu shot may actually reduce the risk of serious complications if you get COVID-19.
Risk of Infecting Others
September 27, 2021
While vaccines are good at keeping you from getting severely ill from COVID, be aware that if you get COVID, you may be as infectious as a non-vaccinated COVID patient, according to several recent reports.
Jobs and Booster Eligibility
September 27, 2021
Find out what jobs make you eligible for a booster.
Replacing Vaccination Card
September 27, 2021
It's advisable to bring your vaccination card when getting a booster, so you have a full record. Find out how to get a replacement card if you lost your original.
Potassium for Kidney Stones?
September 27, 2021
Can taking certain forms of potassium help dissolve or prevent kidney stones? Find out in the What It Does section of our Potassium Supplements Review. Also see our Top Picks among potassium supplements.
PEA for Depression?
September 27, 2021
Can taking palmitoylethanolamide (PEA) along with citalopram (an antidepressant) improve symptoms in people with depression? Find out in our updated answer to the question: What are the best supplements for depression and anxiety?
October
Peanuts & Blood Sugar Control
October 01, 2021
Peanuts have been touted for controlling blood sugar, but we took a close look at a recent study used as a basis for this claim. Learn what we found in our answer to the question: Which supplements and foods can help lower or control my blood sugar?
Low-Dose Red Yeast Rice for Cholesterol?
October 01, 2021
Can a low dose of red yeast rice significantly lower cholesterol levels? See what a recent clinical study found in the What It Does section of our Red Yeast Rice Supplements Review. Also see our Top Pick among red yeast rice supplements.
Sanitizer Warning
October 01, 2021
Consumers are being warned not to use a specific hand-held UV sanitizing wand that could cause skin or eye injury within seconds of use. Details are in our updated article about UV Light Sanitizers and COVID.
Booster Dose for Immunocompromised?
October 01, 2021
Find out if immunocompromised people who received a third vaccine dose should also get a booster.
Booster for Fully Vaccinated People Who've Had COVID?
October 01, 2021
Should fully vaccinated people who had COVID-19 get a booster? Find out.
COVID Vaccine for Women Who Are Pregnant
October 01, 2021
Learn why vaccination is now recommended for women who are pregnant or who can become pregnant.
Vaccine-Related Myocarditis in Young Men
October 01, 2021
See whether Moderna or Pfizer has been linked to a greater risk of myocarditis among young men. (Note: The risk of myocarditis remains much higher from getting COVID than from either vaccine.)
AstraZeneca Vaccine Efficacy & Side Effects
October 01, 2021
Find out how effective the AstraZeneca vaccine (not currently available in the U.S.) is at preventing COVID-19. Also learn the most common side effects of the AstraZeneca vaccine.
Artichoke for Lowering Cholesterol?
October 01, 2021
Can artichoke extract or juice lower elevated cholesterol? Find out what research suggests in our answer to the question: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Human Milk Oligosaccharides (HMOs) for IBS?
October 01, 2021
Are symptoms of IBS improved with use of human milk oligosaccharides (HMOs)? Find out what research suggests in our answer to the question: Do any supplements help for irritable bowel syndrome (IBS)?
More Sunscreens Recalled
October 04, 2021
Five more sunscreen products sold in the U.S. have been recalled due to contamination with benzene, a carcinogen. We've added these, and their specific lot numbers, to our list of nearly 300 products tested for benzene. See the details in our article about Benzene in Sunscreen and After-Sun Products.
Pfizer Efficacy Among Adolescents
October 04, 2021
How effective is the Pfizer vaccine against Delta variant infections among adolescents 12 to 15? See what a recent study found.
Diet for Fatty Liver Disease
October 04, 2021
Find out the most important dietary considerations for people with fatty liver disease in our updated answer to the question: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Copper and Alzheimer's Disease
October 04, 2021
Can excess copper from the diet or supplements increase the risk of Alzheimer’s disease? Find out what research suggests in the Copper section of our Multivitamin and Multimineral Supplements Review.
Caffeine and Tinnitus
October 04, 2021
Does caffeine worsen the frequency or severity of tinnitus? See what a new study found in our updated answer to the question: Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
New Clotting Risk of J&J Vaccine
October 04, 2021
The J&J vaccine has been linked with another rare blood clotting condition. Get the details.
Glycine for Urinary Frequency?
October 04, 2021
Can supplementation with the amino acid glycine improve symptoms of overactive bladder or reduce urinary frequency? See what a new study found in our updated answer to the question: Can glycine improve sleep or reduce nighttime urinary frequency?
Silica for Dental Implant Inflammation?
October 04, 2021
Can a form of silica typically promoted for hair, skin, nail and bone health also help reduce inflammation and bone loss around dental implants? See what a recent study found in our updated article about Silica Supplements.
Shingles Vaccine & COVID
October 07, 2021
Does getting a shingles vaccine reduce COVID risks?
Home Device May Reduce Risk of COVID Death
October 07, 2021
New evidence suggests that using a pulse oximeter when home with COVID may reduce the risk of death. We've added information about this to our answer to the question: Which is the best pulse oximeter for home use?
Home COVID Test Recalled
October 07, 2021
Certain lots of a popular home COVID test have been recalled after they were discovered to provide inaccurate results.
Substance Abuse & COVID
October 08, 2021
People with substance use disorders, particularly regarding cannabis, may be at increased risk for COVID infection, according to a recent study.
Tart Cherry and Blood Sugar
October 08, 2021
Does tart cherry concentrate or capsules help with blood sugar or insulin control? See what a recent study showed in our answer to the question: What are the health benefits of tart cherry juice?
Also see our answer to the question: Which supplements and foods can help lower or control my blood sugar?
Also see our answer to the question: Which supplements and foods can help lower or control my blood sugar?
Niagen for Energy?
October 08, 2021
The maker of Niagen (a supplement containing nicotinamide riboside) was challenged regarding its claim that Niagen boosts energy and performance. See how the company responded in the Nicotinamide Riboside section of our B Vitamins Supplements Review.
Moderna vs. Pfizer: When to Choose One Over the Other
October 08, 2021
Two very different medical reports this week seem to indicate important, although subtle, differences between these two mRNA vaccines. Namely, that the Moderna vaccine has somewhat greater efficacy but, not unexpectedly, at somewhat greater risk of myocarditis in younger people. This seems to suggest that, if given a choice, Moderna may be better for older people while Pfizer may be safer for younger people.
Ketones for Cognition?
October 09, 2021
Can a ketone supplement improve cognitive function? See what a recent study found in our answer to the question: Do any supplements or foods help with brain function, like memory and cognition?
Booster Side Effect
October 11, 2021
Find out which side effect is much more common after a vaccine booster than after the first or second doses of the Pfizer vaccine.
More About Shingles Vaccines & COVID
October 11, 2021
We recently reported that getting a shingles vaccine was linked to lower COVID risk. A CL member asked us if this association applied to Shingrix, Zostavax or both vaccines. See the answer.
Mushrooms and Blood Sugar
October 11, 2021
Find out if supplementing with reishi or oyster mushrooms helps with blood sugar control. See what the latest research showed in our Reishi Mushroom Supplements Review.
Mushrooms and Gut Bacteria
October 11, 2021
Do mushroom powders have beneficial effects on gut bacteria? See what a preliminary study found in the What It Does section our Reishi Mushroom Supplements Review.
How Coffee Helps the Heart
October 14, 2021
A recent study may help explain how moderate coffee consumption reduces the risk of heart disease. Get the details in our updated answer to the question: Is drinking coffee good or bad for heart health?
Moderna Boosters
October 15, 2021
A lower-dose Moderna booster vaccine is now recommended for some people. See details about who should get it and when it may be available.
J&J Vaccine Boosters
October 15, 2021
A booster vaccine is now recommended for everyone who received a J&J vaccine at least two months ago and the booster will likely be available soon. However, be aware that a booster of the Moderna or Pfizer vaccine may boost immunity more than a J&J booster, according to a recent study.
Pfizer Vaccine Boosters
October 15, 2021
As previously reported, boosters are recommended and available for some people who received the 2-dose Pfizer vaccine series at least six months ago.
Pfizer Boosters for 40+?
October 18, 2021
Learn why the FDA may authorize Pfizer boosters for people as young as 40.
Mixing Boosters for J&J Recipients?
October 18, 2021
Find out why some experts support mixing boosters for J&J vaccine recipients. Also see new research indicating that an mRNA vaccine may be the best booster for those already given a J&J-type vaccine.
A Sunscreen Combination to Avoid
October 18, 2021
Combining certain ingredients in sunscreen may inadvertently reduce sunscreen protection and generate toxic compounds, according to new research. Find out which ingredient combinations to avoid in our answer to the question: Which compounds in sunscreen should I be concerned about?
Alpha Lipoic Acid for Pain?
October 18, 2021
Can taking alpha-lipoic acid decrease nerve, muscle or joint pain? See what a new study found in the What It Does section of our Alpha Lipoic Acid Review. Also see our Top Picks for alpha-lipoic acid.
Glutathione Failures
October 18, 2021
Several glutathione supplements sold on Amazon were recently reported to contain less glutathione than expected and/or be contaminated with lead. For details, see our updated answer to the question: Do glutathione supplements work to prevent aging or for other conditions?
Alpha Lipoic Acid Concern
October 19, 2021
Although rare, use of alpha-lipoic acid may trigger autoantibodies to insulin. Be aware of this and other potential side effects of alpha-lipoic aid use, which are discussed in the Concerns and Cautions section of our Alpha Lipoic Acid Review.
Huge Boost from Booster Vaccines
October 21, 2021
New data showed a huge reduction in symptomatic COVID cases with the Pfizer booster Get the details.
Booster Availability
October 21, 2021
Mixing Boosters
October 21, 2021
If you are eligible for a booster, you can now choose any booster regardless of your original vaccine. This may be particularly helpful to those who received the J&J vaccine.
Flu Vaccine for Transplant Recipients?
October 21, 2021
Find out if transplant recipients should consider getting a specific type of flu shot.
Where to Get a Flu Shot
October 21, 2021
Find out where you can get specific flu shots and learn how much the shots cost.
Concern With Kids Multis
October 22, 2021
Do "children's" multivitamins and minerals? Not necessarily, according to a recent study. Find out why in the Children's Multivitamins section of our Multivitamin and Multimineral Supplements Review. Also, see our Top Pick multivitamin for children.
Kidney Caution With Almonds
October 22, 2021
The large amount of almonds shown to slightly reduce wrinkles in recent studies could be problematic for people with a history of kidney stones. Get the details in our updated answer to the question: Can eating almonds reduce wrinkles?
Vitamin K and Coronary Artery Calcification
October 22, 2021
Can supplementing with vitamin K1 slow coronary artery calcification? See what a new study among people with diabetes found in the What It Does section of our Vitamin K Supplements Review. Also see our Top Picks among vitamin K supplements.
How Good Is Pea Protein?
October 22, 2021
How does the amino acid quality and digestibility of pea protein compare to casein? Find out what a new study showed in the ConsumerTips section of our Protein Supplements Review, which also explains the differences between whey, soy, rice, and other sources of protein. Also see our Top Picks among protein powders, including our Top Pick for pea protein.
Reducing Risk of Fractures & Falls With Milk, Cheese and Yogurt?
October 25, 2021
Can increasing calcium and protein intake from foods such as milk, cheese and yogurt reduce the risk of fractures and falls in older men and women? See what a new study found in the Bone Health and Fractures section of our Calcium Supplements Review.
Curcumin for Indigestion?
October 25, 2021
Can curcumin (from turmeric) reduce symptoms of indigestion? See what a new study found in the What It Does section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.
Trout for Omega-3s?
October 25, 2021
Is trout a good alternative to tuna or salmon as a source of omega-3 fatty acids? It depends on the type of trout. Get the details in the Getting EPA and DHA from Food section of our Fish Oil Supplements Review. Also see our Top Picks for fish oil supplements and canned fish.
Reducing Oxalates in Almonds
October 25, 2021
Can roasting, soaking or blanching almonds reduce oxalates without affecting nutrient content? Find out in our updated answer to the question: Can eating almonds reduce wrinkles?
Vitamin D and Insomnia
October 26, 2021
Does vitamin D supplementation improve sleep or reduce insomnia in people with low blood levels of vitamin D? See what a new study found in the What It Does section of our Vitamin D Supplements Review.
Switching from Pfizer to Moderna
October 28, 2021
Find out if switching from Pfizer to Moderna or vice versa boosts antibody levels more than sticking with one brand.
Booster Recommended for People With Certain Mental Health Conditions
October 28, 2021
A booster is now recommended to people with certain mental health conditions. Learn what research prompted this change.
Fourth Vaccine Dose
October 28, 2021
A fourth vaccine dose may be appropriate for some immunocompromised people. Get the details about who is eligible and which vaccines can be received.
More Toothpaste Tips
October 28, 2021
Find out if you need fluoride in toothpaste if you already get it from your drinking water or other sources, if people prone to tooth sensitivity should avoid tartar control toothpaste, and whether xylitol in toothpaste helps prevent cavities.
Pycnogenol vs. Other Pine Bark Extracts
October 29, 2021
There is some evidence that pine bark extract may help improve circulation and chronic venous insufficiency, but be aware that some supplements are not like those used in most clinical trials. Find out what to look on labels in our updated answer to the question: What is Pycnogenol and does it work?
Are Brazil Nuts Radioactive?
October 29, 2021
Brazil nuts contain high concentrations of the radioactive element radium. Find out if you should be concerned in our updated answer to the question: Are Brazil nuts a good source of vitamin E and selenium?
Curcumin Top Pick
October 29, 2021
Based on growing evidence showing greater bioavailability with a particular formulation of curcumin, we have selected a Top Pick among bioavailability-enhanced curcumin products.
November
Low-Dose Prednisone and COVID Vaccines
November 01, 2021
Find out if taking low-dose prednisone reduces immune response to the COVID-19 vaccine.
Pfizer COVID Vaccine for Children
November 01, 2021
The Pfizer vaccine is now authorized for use in children ages 5 to 11. Get the details about its effectiveness as well as side effects and safety in children. Also, find out why availability of the vaccine may initially be limited.
Sun Protection and Bone Health
November 01, 2021
Does staying out of the sun or using sunscreen increase the risk of osteoporosis or bone fracture? Find out what a recent study suggests in the Getting vitamin D from sunlight section of our Vitamin D Supplements Review.
Ashwagandha for Hot Flashes?
November 01, 2021
Can ashwagandha supplementation reduce hot flashes and other symptoms of perimenopause? See what a new study found in the What It Does section of our Ashwagandha Supplements Review. Also see our Top Picks for ashwagandha.
Melatonin in Nuts?
November 01, 2021
Do pistachios or other nuts contain significant amounts of melatonin? How does roasting affect the melatonin content in nuts? See what a new study found in the ConsumerTips section of our Melatonin Supplements Review. Also see our Top Picks among melatonin supplements.
Hydroxyapatite vs. Fluoride Toothpaste
November 01, 2021
Is hydroxyapatite as effective as fluoride for preventing cavities?
Keep Xylitol Away from Dogs
November 01, 2021
Find out why toothpaste with xylitol should be kept away from dogs.
Pfizer Booster Efficacy in People Over 60
November 04, 2021
Find out how much of a boost people over age 60 got from a Pfizer booster in a recent study.
Flu Shot + COVID Booster?
November 04, 2021
Find out if it's okay to get a flu shot at the same time as a COVID booster based on recent evidence.
Quercetin & COVID
November 04, 2021
Find out if quercetin helped people with early-stage COVID-19 in a recent study. Details are in the Viral Infections section of our Quercetin Supplements Review, which includes our test results and Top Picks among quercetin supplements.
When Melatonin Does or Doesn't Help in Hospitals
November 04, 2021
See the latest research on whether or not melatonin helps people undergoing medical procedures or when hospitalized. Also learn if melatonin has been shown to help with other sleep issues. It's all in our Melatonin Supplements Review, which includes our Top Picks for melatonin.
Fluoride and Hypothyroidism?
November 04, 2021
Can fluoride in toothpaste affect thyroid function? Find out what research suggests in our updated article about what to look for, or avoid, in toothpaste.
Moldy Multivitamin?
November 08, 2021
A CL member notified us of online reviews reporting "mold" on a supplement that was Approved by CL. We investigated. Learn what we found in an Update to our Multivitamin Review.
Saw Palmetto Concern
November 08, 2021
Does saw palmetto cause sexual dysfunction? Get the details in the updated Concerns and Cautions section of our Prostate Supplements Review.
Caution With Seaweed Salts
November 08, 2021
Seaweed salts (also known as seaweed seasoning, kelp granules, or table kelp) can be used as salt substitutes, but cooking with them may result in the formation of toxic byproducts according to a recent study. Get the details in the Concerns and Cautions section of our Kelp Supplements Review.
How Much Does Vaccine Protection Decrease?
November 08, 2021
See how much vaccine protection decreased over 6 to 8 months for the Pfizer, Moderna, and J&J vaccines.
COVID Booster & Risk of Spreading Infection
November 08, 2021
A booster reduces the amount of virus you produce if you get COVID, according to a recent study. This should help reduce the risk of spreading infection if you get COVID.
Antibody Levels: Having Had COVID vs. Being Vaccinated
November 08, 2021
How does having had COVID compare to being vaccinated in terms of antibody levels? See what a recent study found, as well as the effect of vaccination after having had COVID.
A Better Form of Glutathione?
November 08, 2021
Is S-acetyl-glutathione (SAG) better than regular glutathione? See what research suggests in our updated answer to the question: Do glutathione supplements work to prevent aging or for other conditions?
Severe Reaction to Multivitamin
November 10, 2021
A middle-aged woman developed a skin rash, hives and difficulty breathing immediately after taking a multivitamin, according to a recent report. Learn why in our update to the Multivitamin and Multimineral Supplements Review.
Multivitamins and Kidney Disease
November 10, 2021
People with chronic kidney disease are often advised to limit their intake of an ingredient that, they may not realize, is common in multivitamins. Learn more in the ConsumerTips section of the Multivitamin and Multimineral Supplements Review.
Sleep, Drink, and COVID Hospitalization Risk
November 10, 2021
Lack of sleep and frequent consumption of certain beverages may each increase the risk of being hospitalized if you get COVID-19, according to a recent study. Get the details in our updated answer to the question: How are you staying healthy during the coronavirus pandemic?
Long COVID Symptoms Not Due to COVID?
November 10, 2021
A recent study suggests that "long COVID" symptoms reported by some people may not be due to COVID. Find out why this is of concern.
COVID Vaccines & Shingles
November 14, 2021
Do COVID vaccines activate shingles? Find out what research suggests.
Flu & COVID Vaccines
November 14, 2021
Additional research indicates that it's safe to get flu and COVID-19 vaccines together. Get the details.
Protection from Past COVID Infection?
November 14, 2021
Find out if past COVID-19 infection protects against re-infection 12 months later based on two recent studies.
Natural Toothpastes
November 14, 2021
Are "natural" toothpastes safe and effective? Find out in our updated article about Finding the Best Toothpaste.
High-dose Folate for Depression
November 14, 2021
My psychiatrist told me to take high-dose of methylfolate to improve the effectiveness of my antidepressant. Is there evidence for this and is it safe? Find out in the Folate section of our B Vitamins Review.
Fish Oil for COVID?
November 17, 2021
Does taking concentrated fish oil reduce hospitalizations or deaths in people with COVID? Find out what a study showed in the COVID section of our Fish and Marine Oil Supplements Review.
Black Seed for COVID?
November 17, 2021
Can supplementing with black seed help improve symptoms or prevent severe disease among people with COVID-19? Find out what research suggests in our answer to the question: What are the health benefits of black cumin seed (black seed) oil?
Does Melatonin Increase Alzheimer’s Risk?
November 17, 2021
My doctor said that melatonin may increase the risk of Alzheimer's as some sleeping pills do. Is this true? See the answer in Concerns and Cautions section of the Melatonin Supplements Review.
Deodorants Recalled for Benzene
November 17, 2021
Two popular foot deodorant sprays are being recalled after benzene, a carcinogen, was found in many lots. We have added information about the products to our recent article: Which deodorants and antiperspirants are contaminated with benzene and which are not?
Vitamin C Serums for Wrinkles?
November 22, 2021
Can applying vitamin C to the skin reduce wrinkles or help prevent sun damage? Find out in the Skin Health section of our Vitamin C supplements review.
Also learn what features you should look for if selecting a vitamin C serum.
COVID-19 Booster Shots: Who is Eligible?
November 22, 2021
Anyone over age 18 is now eligible for a booster six months after full mRNA vaccination or two months after the J&J vaccine, but find out which people are specifically encouraged to get a booster.
Reduced "Long" COVID-19 Risk with Vaccination
November 22, 2021
Getting vaccinated before or even after having COVID-19 has been linked with reduced risk of "long" COVID.
COVID-19 Vaccines and Menstruation
November 22, 2021
Do COVID-19 vaccins affect menstrual periods? Find out what a recent study suggests.
Contaminated Ginger
November 25, 2021
We have added information to our Ginger reviews to include recent tests of spices for toxic heavy metals, such as lead, expanding the number of brands tested.
Contaminated Turmeric
November 25, 2021
We have added information to our Turmeric reviews to include recent tests of spices for toxic heavy metals, such as lead, expanding the number of brands tested.
Recall of Popular Deodorants for Benzene
November 25, 2021
Just three weeks ago, we alerted readers that benzene, a carcinogen, was present in many spray deodorants and antiperspirants. Some of these, and others, are being recalled, including 17 this week. See the latest in our article: Which deodorants and antiperspirants are contaminated with benzene and which are not?
COVID-19 Booster Shots & Antibodies
November 25, 2021
How much antibody boost does a booster give? Much more than a second vaccine dose, a previous infection, or both, according to recent findings.
Fiber Gummies?
November 25, 2021
Are fiber gummies a good way to get fiber? Find out in our updated answer to the question: Is there cause for concern with gummy vitamins?
Find a Vaccine or Booster Near You
November 25, 2021
Trouble finding a vaccine or booster? Here's how to find one near you, with the brand you want.
Pfizer Vaccine & Adolescents
November 25, 2021
Find out how effective the Pfizer vaccine is at preventing hospitalization for adolescents.
Fiberglass HEPA Filters
November 25, 2021
Are HEPA filters made out of fiberglass safe to use inside a home? Find out in our updated answer to the question: Which air purifiers are best for reducing the spread of COVID-19?
Caution With Vitamin Supplements
November 29, 2021
A woman who, for years, had taken a popular vision supplement developed anemia and low white blood cell and platelet counts. What was the connection? Find out in the Concerns and Cautions section of our Vision Supplements Review. Also see our Top Picks among vision supplements.
CoQ10 and Heart Failure
November 29, 2021
Can supplementing with ubiquinol, the active form of CoQ10, improve heart function in people with heart failure? See what a new study found in the What It Does section of our CoQ10 and Ubiquinol Supplements Review. Also see our Top Picks among CoQ10 and ubiquinol supplements.
Nutrients In Jeopardy With a Plant-Based Diet?
November 29, 2021
Which nutrients are in jeopardy when one switches from animal to plant-based proteins? Find out what a recent study showed in the Concerns and Cautions section of our Protein Supplements Review. Also see our Top Picks among protein supplements.
Ashwagandha for Stress?
November 29, 2021
Does ashwagandha supplementation reduce stress? See what a new study found in the What It Does section of our Ashwagandha Supplements Review.
Safer Sunscreens?
November 29, 2021
We reported last month that certain combinations of sunscreen ingredients may reduce sunscreen protection and generate toxic compounds.
In response to reader questions, we've put together a list of sunscreens that do not have these concerning combinations.
Details About Omicron
November 29, 2021
Learn about the new Omicron variant, including if current viral tests can detect this variant and whether vaccinations may help protect against it.
Air Purifier Reviews
November 29, 2021
We've added reviews of two air purifiers, from Blueair and Airfree, to our existing reviews of 58 air purifiers. Find out what we recommend and which we don't and which are our Top Picks based on room size.
Benefits of Flaxseed Oil
November 29, 2021
Find out if flaxseed oil helps with eye floaters in our updated answer to the question: Do any supplements help prevent of reduce eye floaters?
December
Best Rapid Home Test for COVID
December 02, 2021
The FDA has authorized many 15-minute home tests for COVID, but some are better than others at identifying positive samples. See our Top Pick among rapid home tests and how brands compare.
Be aware that these home tests, which can be bought without a prescription, are best used within six days of the start of symptoms. It is likely that they can detect the new Omicron variant. The cost of buying these tests may soon be covered by insurance.
Efficacy of Pfizer Booster
December 02, 2021
See how well the Pfizer booster protected against infection and hospitalization compared to getting just two doses in a recent study.
Home Pulse Oximeter Use Decreases Risk of COVID Death
December 02, 2021
Using a pulse oximeter at home to monitor blood oxygen levels was associated with a significant decrease in risk of death among people with COVID, according to a new study. Get the details and see our Top Pick among pulse oximeters.
Fracture Risk with Melatonin Supplements?
December 02, 2021
This week a newsletter reader asked if taking 3 mg of melatonin every night for sleep can increase the risk of fractures. Get the answer and find out why this is a valid concern in the Concerns and Cautions section of our Melatonin Supplements. Also see our Top Picks among melatonin supplements.
Pesticides in Coffee?
December 02, 2021
A member recently asked if coffee beans or ground coffee might contain enough pesticide residue to be a health concern. Find out in our updated CL Answer about Coffee and Heart Health.
Peanuts for Obesity?
December 02, 2021
Can eating peanuts help manage weight, or reduce blood pressure and cholesterol levels? Find out what a recent study found in our updated answer about Supplements and Weight Management.
Probiotic for Colds?
December 06, 2021
Can taking a probiotic help prevent colds? See what a recent study found in the Cold and acute respiratory infections section of our Probiotic Supplements Review.
See information about other supplements in our answer to the question: Do any supplements help prevent or treat a cold?
Vitamin D Affected by Medication
December 06, 2021
A specific medication for cystic fibrosis seems to increase the absorption of vitamin D, requiring the adjustment to supplementation, according to a recent study. Get the details in the Concerns and Cautions section of our Vitamin D Supplements Review.
Can a Natural Colorant Cause Adverse Effects?
December 06, 2021
A CL member recently asked if purple carrot powder in his supplement might have caused symptoms such as chest tightness and headache. Find out in our updated article about Inactive Ingredients/Excipients.
More COVID Home Tests Reviewed — See If They Made Our Cut
December 06, 2021
The FDA recently authorized many more over-the-counter rapid (antigen) home tests for COVID, but there are significant differences in their accuracy.See how 7 widely sold brands compare, where we've set the bar between the best and the rest, and our Top Pick. Just yesterday, we added information about four more tests.
Chances of COVID Reinfection with Omicron Variant
December 06, 2021
If you've had COVID, be aware that the chance of getting COVID a second time is much higher with the Omicron variant than with previous variants, according to recent data.
Beware of Counterfeit N95s & KN95s
December 06, 2021
Sales of counterfeit N95 and KN95 masks remain a concern according to the CDC. Find out the best way to spot a counterfeit and recent examples of counterfeits. Also see our Top Picks for N95 and KN95 masks.
Quercetin for Severe COVID?
December 06, 2021
Does quercetin help people with severe COVID-19? See what a recent study suggests in the Viral Infections section of our Quercetin Supplements Review. Also see our Top Picks for quercetin.
Can Warm Coffee Trigger Burning Mouth Syndrome?
December 06, 2021
A member asked if anyone else had experienced "burning mouth syndrome" after drinking warm coffee. Find out if drinking coffee can trigger symptoms of this known condition in the Safety section of our updated article about Coffee and Heart Health.
64% of NMN Supplements Fail Tests
December 09, 2021
Fourteen of the 22 most popular NMN supplements (which can boost NAD+ levels) on Amazon were recently discovered to contain no detectable NMN. See the results in the Update to our NAD Boosters Review, which includes CL's tests of additional NMN, NADH, and nicotinamide riboside supplements, as well as our Top Picks.
Pfizer vs. Omicron
December 09, 2021
Find out how effective the Pfizer vaccine appears to be against the Omicron variant as compared to the original strain, according to a recent study.
Home COVID Tests
December 09, 2021
Details are still being worked out, but see the latest information about how the U.S. government intends to make COVID self-tests freely available or reimbursable depending whether you are insured, uninsured, or covered by Medicaid or Medicare. Also see our Top Pick among 7 brands of home tests.
Home Pulse Oximeters for anemia?
December 09, 2021
We recently reported that use of inexpensive home pulse oximeters may reduce the risk of death in people with COVID. But are they useful for other conditions, such as anemia? A member recently asked us about this. Find out in our updated answer the the question: Which is the best pulse oximeter for home use? which includes our Top Picks among home pulse oximeters.
Memory Supplement
December 09, 2021
Did supplementing with Memory Health, a combination of fish oil, carotenoids, and vitamin E, for two years boost memory and cognition in cognitively healthy older people? Find out what a recent study found in our answer about Supplements and Foods for Brain Function.
Magnesium for Metabolic Syndrome?
December 09, 2021
Can magnesium supplementation lower blood sugar and blood pressure in people with metabolic syndrome? Learn what a new study found in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.
How to Improve Balance & Reduce the Risk of Falls
December 09, 2021
Find out how to improve balance with simple exercises, and get tips for reducing the risk of falls in your home. Also, find out which supplements may decrease or increase the risk of falls in our updated answer to the question: Do any supplements improve balance or reduce the risk fo falls?
Prenatal Top Pick Changed
December 09, 2021
A CL member alerted us that a prenatal multivitamin that was our Top Pick has been reformulated, changing its amounts of key vitamins and minerals. Learn how the changes affect our opinion of this supplement.
Lead Contamination in Turmeric Spice
December 13, 2021
Elevated blood levels of lead in two children were linked to turmeric purchased from a local market in the U.S., according to a recent report. Get the details in the Quality Concerns section of our Turmeric and Curcumin Supplements & Spices Review, which includes our tests for lead contamination. See our Top Picks for turmeric.
Fish Oil for Dry Eye?
December 13, 2021
Does supplementing with fish oil, alone or in combination with other oils, improve symptoms of dry eye? See the results of the latest study in the What It Does section of our Fish and Marine Oil Supplements Review. Also see our Top Picks among fish oil supplements.
Liver Injury from Ashwagandha
December 13, 2021
Several cases of liver injury have been reported with use of ashwagandha supplements, including a recent report suggesting why this may happen. Get the details in the Concerns and Cautions section of our Ashwagandha Supplements Review.
Tip for Nickel Sensitive Folks
December 13, 2021
Nickel can trigger an allergic dermatitis in some people, such as from consuming chocolate that is high in nickel. A CL member asked us if supplements can reduce nickel absorption. The answer is yes. Find out how in the Nickel section of our Cocoa/Chocolate Review.
Boosters for Adolescents
December 13, 2021
Some adolescents can now get a booster. Get the details.
D-Mannose for Urinary Tract Infections?
December 13, 2021
See the latest research on whether D-mannose helps prevent UTIs.
Soy and Breast Swelling in Men?
December 16, 2021
Can soy milk, soy protein, or soy isoflavone supplements cause breast swelling in men? Find out in the Concerns and Cautions section of our Plant-Based Milks Reivew. Also, see our Top Picks for soy milk.
Chanca Piedra and Kidney Stones
December 16, 2021
Can supplementing with the herb chanca piedra help break up kidney stones? Find out.
Lemon Juice and Kidney Stones
December 16, 2021
Drinking lemon juice daily may help prevent kidney stones but there is a downside, according to a recent, two-year study. Get the details in our updated answer about Juices That May Reduce Kidney Stone Risk.
Calcium and Kidney Stone Risk
December 16, 2021
Getting too much calcium from supplements may increase risk of kidney stones, while getting too little calcium from foods may increase the risk. Find out how much calcium you should be getting in our updated answer to the question: Can any supplements reduce or increase the risk of kidney stones?
About the Omicron Variant
December 16, 2021
Find out how well vaccines protect against Omicron, how likely Omicron is to reinfect those previously infected by other variants, and how infection with Omicron is different from other variants.
About the Omicron Variant
December 16, 2021
Find out how well vaccines protect against Omicron, how likely Omicron is to reinfect those previously infected by other variants, and how infection with Omicron is different from other variants.
Vitamin C for Mood?
December 20, 2021
Can vitamin C from the diet or supplements help boost mood, including symptoms of depression? Find out what current evidence suggests in the Vitality and Mood section of our Vitamin C Supplements Review, which includes a list of foods high in vitamin C and our Top Picks for vitamin C.
Apple Cider Vinegar for Better Mood?
December 20, 2021
Can drinking apple cider vinegar or taking an apple cider vinegar tablet improve mood? See what a new study found in the What It Does section of our Apple Cider Vinegar Review. See our Top Picks for apple cider vinegar.
Omicron Infection May Be Just As Severe As Delta
December 20, 2021
Data from the U.K. suggests that Omicron infections may be as severe as those from Delta, in contrast to earlier findings from South Africa.
Getting a booster dose appears to provide significant protection against symptomatic infection with Omicron.
This Year’s Flu Shot a “Bad Match?”
December 20, 2021
The 2021-2022 flu shot may be less effective against the currently dominant flu strain, but there is still good reason to get a shot, according to a recent study. Get the details in our updated article about Flu Vaccines.
Symptoms of Omicron
December 23, 2021
The Omicron variant is now the most prevalent strain in the U.S. What are the most common symptoms of Omicron? See how much sooner symptoms start with Omicron.
Omicron and Hospitalization
December 23, 2021
Find out how rates of hospitalization with Omicron compare to that of the Delta variant – including a look at those who have been vaccinated with Pfizer or Moderna.
At-Home COVID Testing
December 23, 2021
Best time to take an at-home COVID test? It may be sooner than you think.
Antigen Testing for Omicron
December 23, 2021
Find out which two brands of antigen tests have been verified to detect the Omicron variant based on ongoing testing conducted by the NIH.
Antigen Testing for Omicron
December 23, 2021
Find out which two brands of antigen tests have been verified to detect the Omicron variant based on ongoing testing conducted by the NIH.
Antigen Testing for Omicron
December 23, 2021
Find out which two brands of antigen tests have been verified to detect the Omicron variant based on ongoing testing conducted by the NIH.
Antigen Testing for Omicron
December 23, 2021
Find out which two brands of antigen tests have been verified to detect the Omicron variant based on ongoing testing conducted by the NIH.
Antigen Testing for Omicron
December 23, 2021
Find out which two brands of antigen tests have been verified to detect the Omicron variant based on ongoing testing conducted by the NIH.
Oral Symptoms of B-12 Deficiency
December 23, 2021
Vitamin B-12 deficiency can cause a range of symptoms in the mouth, as described in a recent report. Learn about oral and other symptoms of B-12 deficiency in the B-12 section of our B Vitamin Supplements Review. Also, see our Top Picks for B-12 and other B vitamins.
Antigen Testing for Omicron
December 23, 2021
Find out which two brands of antigen tests have been verified to detect the Omicron variant based on ongoing testing conducted by the NIH.
Does Collagen Increase Kidney Stone Risk?
December 23, 2021
A member asked whether supplementing with collagen increases the risk of kidney stones, since collagen can produce oxalates. Find out in the Concerns and Cautions section of our Collagen Supplements Review. Also, see our Top Picks for collagen supplements.
Fish Oil to Prevent Depression?
December 27, 2021
Does fish oil prevent depression? Find out what a recent study found in the Depression section of our Fish Oil and Omega-3 Supplements Review. Also see our Top Picks among fish oil supplements.
For information about other supplements promoted for depression, see our answer to the question: What are the best supplements for depression and anxiety?
Air Purifiers for Odor Removal?
December 27, 2021
Can air purifiers that remove virus particles from the air also eliminate odors? Find out in the Technologies for Removing Odors section of our answer to the question: Which air purifiers are best for reducing the spread of COVID-19?
Also see our Top Picks among air purifiers.
Rapid Antigen Tests – How Good Are They?
December 29, 2021
The FDA changed what it was saying this week about the ability of rapid antigen tests, like Abbott BinaxNow and Quidel QuickVue, to detect the Omicron virus. Get the latest information and see our comparisons of 7 brands of antigen tests.
Does Booster Protection Against Omicron Decrease Over Time?
December 29, 2021
Find out if protection against Omicron infection from a booster dose decreases over time, according to recent data for Pfizer and Moderna boosters.
Prevalence of Omicron
December 29, 2021
Although sizable and growing, the current prevalence of Omicron is less than previously estimated. In some regions of the U.S., Delta still represents the majority of cases. Get the details and check your region.
New Recommendations for Quarantine and Isolation
December 29, 2021
The CDC has shortened its recommended time for isolation after confirmed infection as well as quarantine after exposure. Get the details, plus find out if people should be retested before ending isolation.
Hand Sanitizer vs. Soap
December 29, 2021
How do hand sanitizers or disinfectant hand wipes compare to washing hands with soap and water to remove microbes without causing skin dryness and redness? Find out what a recent study showed in the Hand sanitizer section of our answer to the question: Does heat kill coronavirus (COVID-19)?
Comparison of D-Mannose Products – Used to prevent UTIs
December 29, 2021
We added comparisons of several brands of D-mannose to our answer to the question: Can D-mannose help prevent urinary tract infections?
Nitrosigine for Better Cognition?
December 29, 2021
Can supplementing with inositol-stabilized arginine silicate (Nitrosigine) improve memory and cognition in healthy people? Find out what a recent study showed in our updated answer to the question: Do any supplements or foods help with brain function, like memory and cognition?
Prenatal Choline Improves Attention in Children
December 30, 2021
Mothers who took higher doses of choline during pregnancy were found to have children with improved attention, according to a recent study. See the details in the During Pregnancy and Lactation section of our Choline Supplements Review. Also see our Top Picks among choline supplements.
