Home
/ Clinical Updates

Clinical Updates

Display by Product Type

Display by Year

2024

January February March April May June July August September October November

January

Probiotics in Hot Tea?

January 05, 2024

January 19, 2024

Learn how to properly store protein powders in the ConsumerTips section of our Protein Supplements Review, which includes our Top Picks among protein powders.

Protein Powder Allergy?

January 19, 2024

It is possible to be allergic to a protein powder, and some potential allergens need not be disclosed as allergens on labels. Learn more in the Cautions and Concerns section of our Protein Powders & Shakes Review.

Pycnogenol for Hearts and Eyes?

January 19, 2024

We answered the following questions in our article about Pycnogenol and pine bark extracts:

Does Pycnogenol help control coronary artery calcification?
Is Pycnogenol beneficial for glaucoma?

We’ve answered the following questions about removing phytate and lectins from beans and other foods:

Do canned beans need to be soaked or cooked to remove lectins before eating?
Does soaking or cooking dried soybeans or edamame help remove phytate or lectins?
Can the nutrient bioavailability of beans be improved by cooking with garlic, onions, or tomato?

Find out why we we’ve chosen a new Top Pick mouthwash to help prevent bleeding gums.

Also, find out why using mouthwash too many times per day might be unsafe.

Berkey Filter Replacement?

March 01, 2024

With Berkey water filters no longer being sold, how do replacement filters compare (such as those from Boroux, Kainasch, and ProPure)? Find out in our Water Filter Pitchers Review.

Leaky Pills

March 01, 2024

A problem with a popular vision supplement was reported by a CL member and there have been similar reports from other customers. For details, see the Vision Supplements Review.

Heart Concern With High Protein?

March 01, 2024

Too much protein from a single meal might pose cardiovascular risk according to a preliminary study. For details, see the Concerns and Cautions section of our Protein Powders and Shakes Review, which includes our Top Picks among protein products.

Sweeteners and Bladder Pain

March 01, 2024

If you suffer from bladder pain, find out which sweeteners have been associated with increased pain in our article about sugar substitutes. Also see our Top Picks among sugar substitutes.

Loss of Minerals with Reverse Osmosis

March 01, 2024

Reverse osmosis water filtration depletes water of minerals. Is it necessary to add minerals back? Find out in our article about reducing exposure to PFAS, which includes our Top Pick countertop reverse osmosis filter.

Also see our Water Pitcher Filters Review.

Is Plant-Based Calcium Better?

March 01, 2024

Is calcium from algae (as in Aquamin and AlgaeCal) better than other forms of calcium? Find out in the ConsumerTips section of our Calcium Supplements Review. Also see our Top Picks among calcium supplements.

Sweeteners for Keto Diet

March 05, 2024

See which sweeteners are our Top Picks for those on a low-carb or ketogenic diet. We’ve added this to our article about sugar substitutes.

Problems with Creatine

March 05, 2024

Recent tests of lesser-known brands of creatine gummies revealed that half contained little creatine and/or had impurities. Get the details by brand in our Muscle Enhancers Supplements Review. Also see our Top Picks among creatine supplements.

Fish Oil for Memory?

March 05, 2024

Did taking fish oil improve cognitive function or memory among older people with depression in a recent study? Find out in the Memory Enhancement section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

A Caution with Almond Milk

March 05, 2024

Almond milk can contain higher concentrations of calcium than dairy milk, which can lead to excessive calcium intake, as shown in a recent report. Get the details in the Concerns and Cautions section of our Plant-Based Milks Review, which includes our Top Picks.

Do Ethylene Absorbers Work?

March 05, 2024

Do ethylene absorbers extend the shelf life of fruits and vegetables? Find out in our article about washing fruits and vegetables.

Benefiber, Meta Mucil Tested

March 08, 2024

Find out how Benefiber compares to less expensive Optifiber and about its health claims, and how Meta Mucil Fiber Gummies is different from other Meta Mucil products we’ve tested. It’s all in our updated Prebiotic Supplements Review.

Also see our recent tests of psyllium supplements.

Lead In Cinnamon

March 08, 2024

Elevated levels of lead were found in ground cinnamon from several brands and should be avoided. For details, see our Cinnamon Review, which also identifies our Top Picks for ground cinnamon to avoid toxins.

Newly Approved Bone Health Supplement

March 08, 2024

We recently tested NuBest Tall 10+, a bone health supplement that contains calcium, vitamin D, and vitamin K. It was Approved for Quality and is now in our Calcium and Bone Health Supplements Review.

The product was tested and Approved through ConsumerLab's Quality Certification Program.

Sweeteners and the Heart?

March 08, 2024

Is there a higher risk of atrial fibrillation in people who drink artificially sweetened beverages? Find out what a recent study found in our article about sugar substitutes.

Salad Dressing

March 08, 2024

Does the oil in salad dressing increase absorption of vitamins from vegetables? Find out what a recent study showed in our answer to the question: Which vitamins and minerals should be taken together or separately?

Goat’s Rue for Boosting Milk Production?

March 08, 2024

Does taking goat’s rue promote milk production during breastfeeding? Find out in our article about supplements and breastfeeding.

Low-Acid Coffee for Reflux?

March 12, 2024

Are “low-acid” coffees easier on the stomach or less likely to cause reflux than regular coffee? Find out now in our article about coffee.

Also find out how coffee affects:

Help for Jaw Pain?

March 12, 2024

Does CBD reduce pain in people with temporomandibular disorder (TMD) when applied topically? Find out in our Review, which includes our Top Picks.

Green Tea & Blood Sugar

March 12, 2024

Does green tea reduce fasting blood sugar levels? See what a recent study showed in the Blood Sugar Control/Diabetes section of our Green Tea Review, which includes our Top Picks for green tea.

Lead in Meta Mucil

March 12, 2024

A CL member asked why Meta Mucil 4-in-1 Fiber powder was not tested by us this year. It is because of the lead contamination we found when we tested it in 2021, as noted in our recent report. Hoping to find less contamination, this year we tested Meta Mucil 3-in-1 capsules, as well as Meta Mucil Fiber Gummies (a prebiotic).

See our Top Picks among psyllium fiber and prebiotic fiber supplements.

Aloe Mouthwash?

March 12, 2024

Some mouthwashes, such as one from The Natural Dentist, contain aloe instead of alcohol, which can be too harsh for some people. But how effective are aloe-based mouthwashes? Find out in our article about toothpastes and other dental products.

Carcinogen in Folic Acid

March 15, 2024

Several folic acid supplements were recently recalled in Canada due to a carcinogenic impurity that can occur with folic acid (vitamin B-9). For details, see the Quality Concerns section of our B Vitamins Review, which includes our Top Picks for folic acid and B complexes.

Vitamin K - Name Change

March 15, 2024

The name of one of our Top Picks among vitamin K supplements has changed, although the ingredients remain the same. For details, see our Top Picks among vitamin K supplements.

Back Pain & Vitamin D

March 15, 2024

Are low levels of vitamin D linked with increased risk of lower back pain? See what a recent study found in the Bones and fractures section of our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.

Supplements & Acne

March 15, 2024

Be aware that supplementing with whey protein may increase the risk of acne in some people, as noted in the Concerns and Cautions section of our Protein Supplements Review, which includes our Top Picks among products.

Learn about the effects of other supplements on acne.

Cinnamon & Blood Sugar

March 15, 2024

Did supplementing with cinnamon lower blood sugar in men and women with prediabetes? See what a recent study found in our Cinnamon Supplements and Spices Review.

Be aware that lead contamination was recently reported in several brands of cinnamon, as discussed in our Review, which also includes our Top Picks for ground cinnamon to avoid lead and other toxins.

A Benefit of Creamy Salad Dressing?

March 15, 2024

Do the fats in creamy salad dressings and in avocado increase the absorption of fat-soluble vitamins and carotenoids from vegetables? Find out in our article about vitamins and minerals that should be taken together or separately.

Better Skin With Bovine Colostrum?

March 15, 2024

Bovine colostrum supplements have been promoted for improving aging skin and reducing wrinkles, but is there any evidence of this? Find out in our article about bovine colostrum, which includes our top choice among products.

Coffee and Brain Bleed?

March 15, 2024

Does drinking coffee increase the risk of brain bleeds? Find out what research suggests in our article about coffee and heart health.

Prevagen Claims

March 19, 2024

A verdict was recently reached in a case regarding the truthfulness of Prevagen’s claims of improving memory. See the verdict in our article about Prevagen, which includes details regarding what's in Prevagen, its clinical evidence, and safety and side effects.

Bright Light Glasses for Depression?

March 19, 2024

Did a popular brand of bright light therapy glasses improve symptoms of depression? See what a new study found in our article about light box therapy for depression and sleep disorders.

Many Pulse Oximeters Perform Poorly

March 19, 2024

Nearly half of pulse oximeters did not meet regulatory standards for performance in recent tests. Find out which were best and which were worst in our article: "Which is the best pulse oximeter for home use?"

Olive Oil & Fatty Liver

March 19, 2024

Olive oil seems to offer benefits to people with fatty liver disease. See what a recent study showed in our Extra Virgin Olive Oil Review, which includes our Top Picks among olive oils.

Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Vitamin D for ED?

March 19, 2024

Did taking vitamin D improve sexual function among older men? Find out what a recent study showed in our Vitamin D Supplements Review. Also see our Top Picks for vitamin D.

Probiotic for COVID?

March 19, 2024

Did a probiotic promoted to support immune defenses against COVID-19 help prevent or treat COVID-19? Find out in our Probiotics Supplements Review, which includes our Top Picks among probiotics.

Also see: Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?

Beetroot Juice Better for Some Than Others?

March 19, 2024

Beetroot juice may improve exercise capacity for some people, but the benefit appears to be different between women and men, as seen in a recent study. Find out more in our article about beetroot juice and supplements.

Avoiding Allergens in Soap

March 21, 2024

A recent review of products purchased on Amazon suggested terms to look for on labels to help avoid potential allergens. Learn more in our article about finding a soap that won’t irritate skin, which includes our Top Picks for soap and body wash to avoid irritation.

Fish Oil for Migraines?

March 21, 2024

Fish oil may reduce the frequency of migraine headache, although a recent study suggested the benefit may depend on gender. For details, see the Migraine Headache section of our Fish Oil Supplements Review, which includes our Top Picks.

Also see: Do any supplements or foods help with migraine? Do any trigger migraine?

Urolithin A to Protect Kidneys?

March 21, 2024

Does urolithin A prevent kidney damage? Find out in our article about Urolithin A.

New Top Pick Prenatal Multivitamin

March 21, 2024

Concerned by problems recently identified with 11 of 12 prenatal multivitamins in recent tests, we purchased and tested additional prenatal supplements, leading us to change our Top Pick. Learn why in the Top Picks section of our Multivitamin Supplements Review, which includes multis for men, women, children, and pets.

Tea Tree Oil Toothpaste?

March 21, 2024

Dental products containing tea tree oil (such as toothpastes and mouthwashes) can be dangerous. Learn more in our article about dental products, which includes our Top Picks for toothpaste.

Lower Cholesterol with Green Tea

March 21, 2024

Drinking green tea can lower cholesterol or triglyceride levels, as was recently shown. See the details in the What It Does section of our Green Tea Review, which includes our Top Picks for green tea.

NMN Off Walmart, iHerb

March 26, 2024

Walmart and iHerb have joined Amazon in no longer selling NMN (nicotinamide mononucleotide) supplements. To find out why, see the NAD Boosters Review, which includes our tests of NMN, NADH, and nicotinamide riboside products and our Top Picks among them.

Arsenic in Edible Seaweed

March 26, 2024

A popular type of edible seaweed was found to contain very high amounts of arsenic, posing a cancer risk. See the details in our Seaweed Snacks & Foods Review. Also see what our tests of popular products showed and our Top Picks among seaweed snacks and foods.

Preventing Tick Bites

March 26, 2024

Does wearing permethrin-treated socks reduce tick bites? Find out what a recent study showed in our article about tick & mosquito sprays, which includes our Top Picks among repellents and insecticides.

Black Cohosh Concern

March 26, 2024

Use of black cohosh (taken to reduce menopausal hot flashes) may have caused slowed heart rate, according to a recent report. Get the details in our Menopause Supplements Review.

Apple Watch & O2?

March 26, 2024

How accurate is the Apple Watch for measuring blood oxygen levels? Find out in our article about pulse oximeters, which includes our Top Picks.

Also, learn which pulse oximeter readings are considered "normal" and which should prompt you to call your physician or seek medical care.

Detox Foot Pads?

March 26, 2024

Detox foot pads are promoted for removing heavy metals and other toxins from the body, but do they really work? Find out in our article about detox foot pads.

Red Yeast Rice Linked to Deaths in Japan

March 29, 2024

Red yeast rice products in Japan have recently been recalled after being linked with kidney injury and four deaths. Get the details in our Red Yeast Rice Review, which includes our tests for citrinin (a potential kidney toxin in red yeast rice) and our Top Picks among products.

Microplastics Cardiovascular Concern

March 29, 2024

Microplastic particles were recently found in arterial plaque in many people, and this was associated with much higher risk of stroke, heart attack, and death. Get the details in the Microplastics section of our Water Filter Pitchers Review. Also see our Top Pick water filter pitcher for removing microplastics.

Bacopa for Memory?

March 29, 2024

Did bacopa extract improve memory and cognition in a recent study? Find out in our article about bacopa extract for memory, mood, and sleep.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Vitamin D & Prostate Cancer-Related Bone Loss

March 29, 2024

Taking high-dose vitamin D during androgen deprivation therapy for prostate cancer may help some men prevent bone loss, according to a recent study. Get the details in the Prostate Cancer section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Permethrin & Sun-Protection Clothing

March 29, 2024

Can permethrin spray be applied to sun-protection clothing without adversely affecting the UV protection? Find out in our article about insect repellents and insecticides.

Understanding Fluoride

March 29, 2024

How does fluoride protect teeth and do older people need it? Find out in our article about toothpaste, which includes our Top Picks.

What is CBG (cannabigerol)?

March 29, 2024

What is CBG and how does it compare to CBD? Find out in our Review, which includes our Top Picks among products.

April

Laser Caps for Hair?

April 02, 2024

Do low-light laser caps and helmets such as Capillus and Theradome really help to grow hair? Find out in our article about supplements for hair.

Best Bacopa?

April 02, 2024

A CL member asked which bacopa supplement is best. Based on what has been used in clinical studies, you can see which product we suggest as a top choice for bacopa.

Hydroxyapatite Toothpaste

April 02, 2024

Is Davids Sensitive + Whitening toothpaste a good option for people who want to use hydroxyapatite in place of fluoride? Find out in our article about toothpaste and dental products, which includes our Top Picks.

Lava Soap For Dry Skin?

April 02, 2024

Is Lava Bar Soap a good option for people with dry skin? Find out in our article about soaps that won't irritate skin, which includes our Top Picks among soaps and body washes.

Does Gas-X Work?

April 02, 2024

Does simethicone, the active ingredient in Gas-X and Phazyme, reduce gas? Find out in our article about supplements for gas.

Swelling from Minoxidil

April 05, 2024

Even when used topically, minoxidil may cause swelling of the hands and feet. Learn the factors that increase this risk, in our article about supplements and other treatment options for supplements and other treatment options for hair growth.

New Formulation of Ivory Soap

April 05, 2024

Ivory Original Bar Soap was recently reformulated, but is it right for dry skin? Find out in our article about soaps for dry skin.

Apple Cider Vinegar

April 05, 2024

A recent study suggested that apple cider vinegar decreased body weight. See which dose worked best and get other details in our Apple Cider Vinegar Review, which includes our Top Picks for apple cider vinegar.

Charcoal Soap

April 05, 2024

Are charcoal soaps safe and effective for cleaning the skin? Find out what evidence suggests in our article about soaps for dry skin.

Fake Saffron

April 09, 2024

Recent tests of saffron supplements by researchers at a U.S. university found most products contained "no saffron compounds." For details and to see what ConsumerLab found in its own tests, see our Saffron Supplements Review, which includes our two Top Picks for saffron.

Best Fluoride Toothpaste Without SLS

April 09, 2024

A member asked us to recommend a fluoride toothpaste that does not contain SLS or menthol/mint flavoring, which bothers them. See which product we selected in our article about toothpastes and other dental products.

Vegamour for Hair?

April 09, 2024

Vegamour GRO Hair Serum is marketed for making hair thicker and fuller but is there any clinical evidence to support this claim? Find out in our article about supplements for hair.

CoQ10 Deficiency?

April 09, 2024

Due to genetics, are some people more likely to need CoQ10 or ubiquinol? Find out in our CoQ10 and Ubiquinol Supplements Review, which includes our Top Picks for CoQ10 and ubiquinol.

Fish Oil and Heartburn/Reflux

April 09, 2024

In some people, fish oil causes heartburn or reflux. See tips for reducing these side effects in our Fish Oil Supplements Review, which includes our Top Picks among fish, krill, and algal oil supplements.

Also see: Which supplements, foods or diet and lifestyle changes help relieve acid reflux (heartburn), and which worsen it?

Aspirin Interactions

April 09, 2024

Aspirin is taken by some people as a blood thinner. Find out which vitamin may increase the effects of aspirin, and which vitamins and minerals may be affected by taking aspirin. We’ve added this information to our article about supplements interactions with the anticoagulant warfarin.

Magnesium Glycinate – What to Look For

April 09, 2024

Some magnesium glycinate supplements are not truly this chelated form of magnesium. Find out what to look for on labels to help ensure you’re getting chelated magnesium glycinate in the ConsumerTips section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Saffron for Fatty Liver?

April 09, 2024

Did taking a saffron supplement decrease liver fat in people with fatty liver disease? Find out what a recent study showed in our Saffron Supplements Review. Also see our Top Picks among saffron supplements.

Creatine and Kidney Tests

April 09, 2024

Does taking creatine interfere with tests of kidney function that measure creatinine? Find out in the Concerns and Cautions section of our Creatine and BCAAs Review, which includes our Top Picks for creatine and other workout supplements.

Also see our answer to the question: Which vitamins and supplements should be stopped before getting blood work and laboratory tests?

Selenium Deficiency In Vegetarians

April 11, 2024

Are vegans and vegetarians likely to be deficient in selenium? Depends on where you live. Learn more in our Selenium Supplements Review, which includes our Top Picks among selenium supplements.

Also see: Top 8 vitamins and nutrients for vegetarians and vegans.

Cinnamon Recall

April 11, 2024

Another brand of cinnamon has been recalled for elevated levels of lead. Get the details in the Quality Concerns section of our Cinnamon Supplements and Spices Review, which also identifies our Top Picks for ground cinnamon to avoid toxins.

Top Pick Water Filters

April 11, 2024

We’ve chosen an overall Top Pick among water filter pitchers based on test performance, cost, and certification. We have also changed our Top Picks for certain uses due to changes in products and availability. See our current Top Picks in our Water Filter Pitcher Review.

D-Mannose for Preventing UTI?

April 11, 2024

Does D-mannose help prevent urinary tract infections? Find out what a recent study showed in the What It Does section of our D-Mannose Supplements Review. Also see our Top Picks for D-Mannose.

Plant-Based Meat and Heart Health

April 11, 2024

Does replacing animal meat with plant-based “meat” such as the Beyond Burger or Impossible Burger improve heart health? Find out what a recent study showed in our article comparing the Beyond Burger, the Impossible Burger, and a beef burger.

Olive Oil Soap

April 12, 2024

A CL Member asked if olive oil soaps can help moisturize dry skin. Find out what the evidence suggests, plus, learn how olive oil may affect eczema, in our article about soaps for dry skin. Also see our Top Picks for soap and bodywash for dry skin.

Also, see our Extra Virgin Olive Oil Review, which includes our Top Picks among bottled olive oils.

Oral vs. Topical Minoxidil

April 12, 2024

How does taking low-dose minoxidil as a pill compare with topical minoxidil for hair growth? See what a recent study found in our article about supplements and treatments for hair.

Pharmaceutical Grade Fish Oil

April 16, 2024

A member asked why CVS has stopped selling its Pharmaceutical Grade Fish Oil. We asked CVS, which gave no good reason, but we suspect that the product may have been considered an "unapproved" medication due to its similarity to prescription fish oil. But good options remain: See our Top Pick for highly concentrated fish oil in our Omega-3 Supplements Review.

PFAS Toxins in Seafood

April 16, 2024

A recent study raised concern about high levels of PFAS in certain seafoods. Get the details in our Canned Fish Review, which includes our Top Picks among canned and packaged tuna, salmon, sardines, and herring.

PFAS Toxins in Drinking Water

April 16, 2024

Separately, the EPA recently finalized limits on PFAS in drinking water, but this gives water districts until 2029 to take corrective action. Learn more and see our Top Pick water filter pitcher for removing PFAS.

Body Wash: New Top Pick

April 16, 2024

Find out why we’ve selected a new Top Pick body wash in our article 5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin, which also includes our Top Pick bar soap.

Vitamin D & Age

April 16, 2024

Do older people produce less vitamin D from sunlight than younger people? Find out in the ConsumerTips section of our Vitamin D Supplements Review, which explains who is most likely to have low levels of vitamin D. Also see our Top Picks among vitamin D supplements.

MitoQ for Arteries?

April 16, 2024

Did taking MitoQ, a compound related to CoQ10, improve cardiovascular fitness in older men and women? See what a recent study found in the MitoQ section of our CoQ10 & Ubiquinol Supplements Review, which includes our Top Picks among CoQ10 and ubiquinol supplements.

How Olive Oil Lowers Cholesterol

April 19, 2024

A recent study suggested how substituting olive oil in place of saturated fats can reduce cholesterol. Get the details in the Cardiovascular Disease section of our Extra Virgin Olive Oil Review, which includes our Top Picks for olive oil.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

NMN and Kidney Injury

April 19, 2024

New laboratory research suggests that long-term supplementation with NMN might cause kidney injury in older people. Learn more in the Concerns and Cautions section of our NAD Booster Supplements Review.

Acetyl-L-Carnitine for Nerve Pain?

April 19, 2024

Is acetyl-L-carnitine recommended to reduce nerve pain in people with diabetes? Find out in the What It Does section of our Acetyl-L-Carnitine Supplements Review.

Also see: Do any supplements, like Nervive, help with nerve pain, like sciatica, diabetic neuropathy or postherpetic neuralgia?

Bar Soap for Dry Skin -- New Top Pick

April 19, 2024

Find out which bar soap is our new Top Pick for dry skin and learn why we like it better than our previous Top Pick bar soap, in our article: 5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin.

How to Avoid Counterfeit Supplements: Deva Nutrition

April 19, 2024

We've added information about how to safely purchase Deva Nutrition products. Get the details for Deva, and 62 other popular supplement brands, in our article: Where to Safely Buy Real Vitamins and Supplements.

Collagen Sources

April 19, 2024

Wondering if your collagen is from pigs, cows, or fish? We have tested them all, as discussed in the Top Picks section of our Collagen Supplements Review.

Chitosan for Hair?

April 19, 2024

Can applying chitosan to hair help it grow? Find out what research suggests in our article about supplements for hair.

Also, find out which antidepressants are most and least likely to be associated with loss of hair.

Vitamin E, Evening Primrose Oil, & Breast Pain

April 19, 2024

Does supplementing with vitamin E and/or evening primrose oil reduce pain among women with menstrual cycle-associated breast pain? Find out what research suggests in the What It Does section of our Vitamin E Supplements Review. Also see our Top Picks among vitamin E supplements.

Organic Olive Oil?

April 23, 2024

Are pesticides used on olives and should I seek organic olive oil? See the discussion in our Extra Virgin Olive Oil Review, which includes our Top Pick for organic extra virgin olive oil.

Taking Probiotics With Vitamins and Minerals?

April 23, 2024

Is it okay to take probiotics at the same time as vitamin and mineral supplements? Find out in our Probiotics Supplements Review, which includes our Top Picks among probiotics supplements.

Also see: Which vitamins and minerals should be taken together or separately?

Stevia in Toothpaste?

April 23, 2024

What are the pros and cons of toothpaste sweetened with stevia, such as All in One Toothpaste from The Natural Dentist?

Hair Devices & Safety

April 23, 2024

Can low-level light therapy (LLLT) hair devices such as Theradome or Capillus cause eye damage? Find out in our article about hair supplements and devices.

Probiotics & Cholesterol

April 23, 2024

How might probiotics work to lower cholesterol? Find out what a recent study suggests in the Lowering cholesterol & apoB section of our Probiotics Supplements Review, which includes our Top Picks among probiotic supplements.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Prebiotic for Better Memory?

April 23, 2024

Did taking Sunfiber, a prebiotic, boost memory, mood, or sleep in older men and women? See what a recent study found in our Prebiotic Supplements Review, which includes our Top Picks among prebiotic supplements.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Elderberry Interactions?

April 23, 2024

Taking elderberry extract along with certain medications might increase the risk of adverse effects, according to a recent report. Get the details in our Elderberry Supplements Review. Also see our Top Picks among elderberry products.

Recalled Supplement Still Sold

April 26, 2024

A ConsumerLab member alerted us that a phosphatidylserine supplement that was the subject of recall in January (triggered by ConsumerLab.com’s findings) was still being sold on Amazon. For details, see the Update in our Phosphatidylserine Review, which includes our Top Pick for phosphatidylserine.

Top Pick Dental Floss

April 26, 2024

CL members pointed out that Consumer Reports indicated some concern with a dental floss that we recommend. See why we continue to recommend it.

Medication Found in Umary Supplement

April 26, 2024

A potent medication was found in Umary Hyaluronic Acid, with serious side effects reported. Get the details. Also see our Top Picks among supplements for joint health.

Benzene in Antiperspirant: Settlement

April 26, 2024

Unilever has agreed to pay $2 million to settle a lawsuit over the presence of benzene, a potential carcinogen, found in Sauve antiperspirants. See the details and our list of other contaminated antiperspirants and deodorants.

Alpha-Lipoic Acid for Nerve Pain?

April 26, 2024

Is alpha-lipoic acid as effective as pregabalin (Lyrica) in reducing the pain of peripheral neuropathy? Learn what a recent study found in the What It Does section of our Alpha-Lipoic Acid Supplements Review, which includes our Top Pick for alpha-lipoic acid.

Also see: Do any supplements, like Nervive, help with nerve pain, like sciatica, diabetic neuropathy or postherpetic neuralgia?

Supplements to Avoid Before Surgery?

April 26, 2024

We've added additional supplements you should stop taking before surgery to avoid increased bleeding risk to our related article, which includes recommendations on how long before surgery these should be discontinued.

Magnesium for Anxiety and Sleep?

April 30, 2024

Do magnesium supplements reduce anxiety or improve sleep? See what studies have shown for anxiety and sleep and also learn about the product Natural Vitality Calm which we tested in our recent Magnesium Supplements Review.

Magnesium for Leg Cramps?

April 30, 2024

Does magnesium reduce leg cramps? Find out what studies have shown in our Magnesium Supplements Review.

Also see our recent Top Pick among magnesium supplements.

Flaxseed and Blood Thinners

April 30, 2024

Does flaxseed have a blood-thinning effect, and might it interact with blood thinners such as warfarin (Coumadin) or apixaban (Eliquis)? Find out in the Concerns and Cautions section of our Flaxseed Review. Also see our Top Pick for flaxseed (whole and ground) and flaxseed oil.

Probiotic for Boosting Testosterone?

April 30, 2024

Did taking a probiotic boost testosterone levels in men? Find out what a recent study showed in the Other conditions section of our Probiotics Supplements Review, which includes our Top Picks.

Also see: 10 Supplements That May Boost Testosterone (And 12 That May Not)

Attitude Soap

April 30, 2024

Find out why Attitude brand bar soaps and shower gels are not among our Top Picks for sensitive skin in our article: 5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin.

May

Mislabeled Magnesium

May 03, 2024

In response to a lawsuit, a popular brand of supplements is now providing refunds to people who purchased one of its magnesium products. The suit alleged that the products were mislabeled regarding the form of magnesium they contained. See the Update in our Magnesium Supplements Review, which includes our Top Pick for magnesium.

Similarly, one of the magnesium products covered in our recent Review also seems to have its form of magnesium mislabeled despite providing the correct amount of magnesium. We have changed its status to Not Approved (see the Update).

In addition, a company that sells a magnesium supplement that was Not Approved by us responded to a question about this from a ConsumerLab member. The response suggests that the company does not understand that its product is mislabeled (see the Update).

Fatty15 Side Effects

May 03, 2024

Learn about possible side effects of the supplement fatty15.

Do Ionic Foot baths Work?

May 03, 2024

Find out whether ionic foot baths are effective at removing toxins from the body in our article: Do detox foot pads or ionic foot baths remove heavy metals or other toxins from the body?

L-Citrulline for Fatty Liver?

May 03, 2024

Does taking L-citrulline decrease liver fat or have other benefits in people with metabolic-associated fatty liver disease (MAFLD)? See what a recent study found in the What It Does section of our L-Citrulline Supplements Review, which includes our Top Picks among L-citrulline supplements.

Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Thiamin Deficiency After Bariatric Surgery

May 03, 2024

Having bariatric surgery can lead to vitamin deficiencies in people who do not follow recommended supplementation. This was recently reported in three individuals who developed thiamin deficiency after gastric bypass surgery. Get the details in the Thiamin section of our B Vitamin Supplements Review.

Also see our Top Pick among multivitamins for people who have undergone bariatric surgery and our article about supplements to take or avoid after bariatric surgery.

Ashwagandha for Stress?

May 07, 2024

A recent study found that an ashwagandha extract reduced stress, anxiety, and depression, but dose and type of extract appears to matter. See the details in the Stress section of our Ashwagandha Supplements Review, which includes our Top Picks among ashwagandha supplements.

Also see: Do any supplements help relieve stress?

Turmeric for Arthritis?

May 07, 2024

Does supplementing with turmeric extract (curcumin) help reduce joint pain in people with rheumatoid arthritis? Find out what a recent study showed in the Arthritis section of our Turmeric and Curcumin Supplements and Spices Review, which includes our Top Picks for turmeric and curcumin.

Also see: Which supplements help with arthritis?

Probiotic for IBS

May 07, 2024

Can a probiotic (live or heat-treated) reduce symptoms of diarrhea-predominant irritable bowel syndrome? Find out what a recent study showed in the IBS section of our Probiotic Supplements Review. Also see our Top Picks among probiotics.

Also see: Do any supplements help for irritable bowel syndrome (IBS)?

RoundUp in Cinnamon

May 07, 2024

A recent study found glyphosate (RoundUp) in some popular brands of cinnamon. Is this a health concern? Get the brand-specific details in the Quality Concerns section of our Cinnamon Supplements & Spices Review. Also see our Top Pick among cinnamon spices and supplements.

Change in Ginger Product

May 07, 2024

We recently learned of a change to the ginger supplement that had the highest concentration of ginger compounds in our tests. See the Update in our Ginger Supplements and Spices Review, which includes our Top Picks for ginger.

Magnesium Threonate for Memory?

May 07, 2024

Is magnesium threonate (found in Magtein) better than other forms of magnesium for memory and cognition? Find out in the Dementia and cognition section of our Magnesium Supplements Review.

Also see our Top Pick among magnesium supplements.

New Top Pick for Vision

May 10, 2024

We have tested and chosen a new Top Pick among supplements to slow the progression of age-related macular degeneration. Get the details. Also, be aware that some formulas contain too much zinc, which has been reported to cause anemia.

Environmental Effects of Mineral Sunscreens

May 10, 2024

Mineral sunscreens are believed to be safer for ocean life than chemical sunscreens, but they still may do some harm, according to a recent study. Learn more in our article about finding the best sunscreen.

Eggs and Risk of Death

May 10, 2024

A recent study found that eating more than a certain number of eggs (a source of choline) daily carried an increased risk of death among people with a history of heart disease or stroke. Get the details in the Concerns and Cautions section of our Choline Supplements Review.

Magnesium, Sleep Apnea & Restless Legs

May 10, 2024

Does taking magnesium help with sleep apnea? Does it help with restless legs syndrome? These questions are addressed in our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Also see: Do any supplements help with restless legs syndrome?

Fatty15 for Anemia?

May 10, 2024

Is there clinical evidence that the supplement fatty15 optimizes red cell production? See our article about fatty15 (C15:0 fatty acid).

Supplements and Blood Pressure

May 10, 2024

Find out which supplements may increase or decrease blood pressure, and learn what to look for when selecting a home blood pressure monitor, in our article about supplements and blood pressure.

GABA for Sleep or Mood?

May 14, 2024

The authors of a recent study suggested that taking GABA before bedtime enhanced sleep efficiency, but we question whether it really helped at all, as discussed in the Insomnia section of our GABA Supplements Review, which includes our Top Picks among GABA supplements.

Also see: Which supplements and lifestyle changes improve sleep, and which cause insomnia?

When Taking Calcium Hurts

May 14, 2024

Results of a major study suggest that supplementing with calcium can decrease or increase the risk of hip fracture in postmenopausal women depending on age. See the details in the Bone health and fractures section of our Calcium Supplements Review. Also see our Top Picks for calcium and for vitamin D.

Avocado Health Benefits?

May 14, 2024

Find out if consuming one avocado per day reduced obesity and cholesterol levels in a recent study in the Avocado fruit section of our Avocado Oil Review.

Also see our Top Picks among avocado oils.

Best Form of Lutein?

May 14, 2024

Is one form of lutein more effective in raising blood levels of lutein than another? See what a recent study found in the ConsumerTips section our Vision Supplements Review, which also explains the best way to take lutein to improve absorption. Also see our new Top Pick vision supplement for slowing age-related macular degeneration.

Plant-Based Milks: Iodine Concern

May 14, 2024

Be aware that almond, oat, and soy milk tend to contain very little iodine compared to cow’s milk, which could increase the risk of iodine deficiency and thyroid problems in people who do not get enough iodine from other sources. Get the details in the Concerns and Cautions section of our Plant-Based Milks Review. This is particularly important for women who are pregnant or breastfeeding – due to increased iodine requirements, see our Top Pick prenatal multivitamin for more details.

Also see: Top 8 vitamins and nutrients for vegetarians and vegans

Chlorophyll Supplements: Benefits and Risks

May 14, 2024

Do chlorophyll supplements reduce body odor, help prevent cancer, or have other health benefits, and are there adverse effects? Find out in our answer to the question: What are the health benefits of chlorophyll and chlorophyllin, and are they safe?

Rinse After Brushing?

May 14, 2024

A study showed how much more fluoride (from toothpaste) persists in the mouth when spitting, but not rinsing, after brushing – a practice that experts suggest. See the details in our article about toothpaste, which includes our Top Picks.

Melatonin and Restless Legs

May 14, 2024

Melatonin may help some people fall asleep faster, but might it worsen symptoms in people with restless legs syndrome (RLS), which makes sleeping more difficult? Find out in the Concerns and Cautions section of our Melatonin Supplements Review, which includes information about other potential side effects, as well as interactions, with melatonin.

Phthalates Found in Extra Virgin Olive Oil

May 17, 2024

A recent study detected phthalates (plasticizer chemicals) in popular extra virgin olive oils. Get the details by brand, and find out if you should be concerned, in the Quality Concerns section of our Extra Virgin Olive Oils (EVOO) Review, which includes our Top Picks for EVOO.

Magnesium Top Pick

May 17, 2024

We’ve added a 2^nd Top Pick for magnesium. It’s well absorbed, with a lower risk of causing diarrhea. Get the details in the Top Picks section of our recent Magnesium Supplements Review.

Our Recommended Sunscreens

May 17, 2024

With summer around the corner, we updated our list of recommended sunscreens. Each is broad-spectrum for UVA and UVB, does not contain untested chemical sunscreens, and has not been found to be contaminated with benzene (a carcinogen).

Can Omega-3 Help with Dry Eye?

May 17, 2024

Did taking an omega-3 fatty acid supplement for 3 months improve dry eye symptoms? Find out in the Dry Eye section of our Fish Oil/Omega-3 Supplements Review, which includes our Top Picks among omega-3 supplements.

Prescription Toothpaste?

May 17, 2024

Find out who may need prescription toothpaste and how it differs from regular toothpaste.

Lower Cost for Fatty15?

May 17, 2024

The supplement fatty15 is expensive. Is its key ingredient available at lower cost? Find out in our article about C15:0 fatty acid.

Which Form of Chlorophyllin?

May 17, 2024

Chlorophyllin is a derivative of chlorophyll found in supplements, typically as sodium copper chlorophyllin. Some products contain sodium magnesium chlorophyllin, but does it have proven benefits? Find out in our article about chlorophyll and chlorophyllin.

Allergy to Metamucil

May 21, 2024

Asthma and allergic reactions to psyllium fiber supplements, including Metamucil, have been reported, although not common. Get the details in the Concerns and Cautions section of our Psyllium Review, which includes our Top Picks for psyllium.

How to Avoid Counterfeit Supplements

May 21, 2024

We’ve now collected information about how to safely purchase supplements online for 65 popular brands.

L-Theanine May Reduce Sleep

May 21, 2024

A recent study of L-theanine suggests it may significantly reduce time asleep. See the details in the What It Does section of our L-Theanine Supplements Review, which includes our Top Picks.

Ashwagandha Can Impact Thyroid Function

May 21, 2024

Be aware that ashwagandha supplements may increase thyroid hormone levels and cause side effects, as was recently reported. Get the details, including symptoms, in the Concerns and Cautions section of our Ashwagandha Supplements Review, which includes our Top Picks.

Andrographis Health Effects

May 21, 2024

Find out if andrographis helps with conditions such as cancer, COVID-19, and multiple sclerosis in our article about the health benefits and safety of andrographis.

Also see: Do any supplements reduce symptoms or relapse of multiple sclerosis?

Also see: Do any supplements help with COVID-19?

Arginine for Libido, Mood?

May 21, 2024

Did taking L-arginine improve sexual function or mood in women with depression? Find out what a recent study showed in the What It Does section of our L-Arginine Supplements Review, which includes our Top Picks.

Vitamin D for Asthma?

May 21, 2024

Does high-dose vitamin D improve asthma? Find out what a recent study showed in the Asthma section of our Vitamin D Supplements Review, which includes our Top Picks.

MSM Drops for Dry Eye?

May 21, 2024

Should you consider eye drops containing MSM for dry eye? Find out in our article about "natural" treatments and supplements for dry eye.

Iron Supplements and Blood Tests

May 21, 2024

Should iron supplements be stopped before blood tests to monitor anemia? Find out in the ConsumerTips section of our Iron Supplements Review. Also see our Top Picks among iron supplements.

High Levels of Toxic Metals in Some Chocolates and Cocoas

May 24, 2024

Recent tests of common chocolates and cocoas sold in the U.S. identified several with disturbingly high levels of the toxic metals cadmium and lead. For details, see the Update in our Dark Chocolate and Cocoa Review. Also see our Top Picks among dark chocolates and cocoas.

Krill Oil for Osteoarthritis?

May 24, 2024

Does taking krill oil reduce pain or swelling from knee osteoarthritis? Learn what a recent study found in the Osteoarthritis section of our Omega-3 Supplements Review, which includes our Top Picks for krill oil and other omega-3 supplements.

Fluoride Risk During Pregnancy?

May 24, 2024

A recent study suggested a link between higher fluoride exposure during late pregnancy and an increased risk of certain behavior problems in offspring, although there are notable caveats. See our article about fluoride and ADHD for details.

Get more information about fluoride in our article about toothpaste.

Biotin vs. Biothin

May 24, 2024

What is the difference between biotin and Biothin? Find out in our article about biotin for nails and hair.

Fish Oil & Atrial Fibrillation

May 29, 2024

Be aware that regular use of fish oil supplements may increase the risk of atrial fibrillation. See the Concerns and Cautions section of our Fish Oil Supplements Review for the latest information. Also see our Top Picks among fish oil supplements.

Cholesterol Lowering with Probiotic?

May 29, 2024

Did taking a probiotic supplement decrease LDL cholesterol or triglyceride levels in older men and women in a recent study? Find out in the Lowering cholesterol, triglycerides, and apoB section of our Probiotic Supplements Review. Also see our Top Picks among probiotics.

Eggs for Alzheimer’s

May 29, 2024

Weekly consumption of a modest number of eggs, which are a good source of choline, was associated with a dramatic reduction in risk of Alzheimer’s disease, according to a recent study. Choline supplements may also be helpful. Get the details in the Alzheimer's section of our Choline Supplements Review, which includes our Top Picks among choline supplements.

Curcumin for Fatty Liver?

May 29, 2024

Did taking curcumin decrease liver fat in people with fatty liver disease? Find out what a recent study showed in the Fatty Liver section of our Turmeric and Curcumin Review. Also see our Top Picks among turmeric and curcumin supplements and spices.

Trouble Swallowing & Iron Deficiency

May 29, 2024

Although uncommon, be aware that iron-deficiency anemia can make swallowing difficult for some people. Get the details, including if iron supplementation can help correct this symptom, in the Iron Deficiency and Anemia section of our Iron Supplements Review, which includes our Top Picks for iron.

Also see: 7 Tips to Avoid Getting a Pill Stuck in Your Throat.

Ring-Type Pulse Oximeters

May 29, 2024

What are the pros and cons of ring-type pulse oximeters? Find out in our article about pulse oximeters, and learn why these may be particularly useful to people with darker skin.

Fluoride Exposure and the Brain

May 31, 2024

Some groups claim that fluoride may be a cognitive neurodevelopmental hazard to humans. Learn why this claim is misleading in our article about fluoride exposure in children.

Have Kidney Disease? Watch What’s In Your Water

May 31, 2024

People with chronic kidney disease are particularly susceptible to the toxic effects of heavy metals. Even low levels of lead in drinking water may be harmful, according to a recent study. See our Water Filter Pitchers Review for details. Also see our Top Picks among water filter pitchers.

Coffee Intake & Osteoporosis

May 31, 2024

Drinking coffee was linked with a lower risk of osteoporosis in a recent study, but the amount and type of coffee both appear to matter. See the details in our article about coffee and bone health.

Essential Oils Legal Settlement

May 31, 2024

Young Living Essential Oils has agreed to pay $5 million dollars to settle a class action lawsuit regarding a "therapeutic" claim in marketing its essential oils, including one that we tested in our Lavender and Tea Tree Essential Oils Review. See settlement details in our Recalls & Warnings section.

Caution with Apple Cider Vinegar Pills

May 31, 2024

We found that apple cider vinegar capsules from a popular brand pose a risk to users due to very high acid content. For details, see our Apple Cider Vinegar Review, which includes our Top Picks among bottle vinegars and pills.

June

Melatonin & Sleep Apnea

June 04, 2024

Taking melatonin may improve sleep in people with sleep apnea who use CPAP devices according to a recent study. See the details in the What It Does section of our Melatonin Supplements Review, which includes our Top Picks for melatonin.

Magnesium for Sleep

June 04, 2024

Which form of magnesium helps with sleep? See the Sleep section of our Magnesium Review, which includes our Top Picks for magnesium.

Walnuts for Bone Health?

June 04, 2024

Did eating walnuts daily for 2 years reduce fractures among older men and women? Find out what a recent study showed in the What It Does section of our Shelled Walnuts Review, which includes our Top Picks among shelled walnuts.

Also see: Do any supplements or diets help prevent or treat osteoporosis?

Do Detox Supplements Work?

June 04, 2024

Do "detox" supplements really remove heavy metals and other toxins from the body? Are they safe? Find out in our new article about detox supplements.

Caution With White Willow in Joint Supplements

June 04, 2024

A CL member asked about potential side effects of taking white willow. Be aware that white willow extract is added to some joint health supplements and can have side effects. For details, see the Concerns and Cautions section of our Joint Health Supplements Review, which includes our Top Picks among products.

Supplement for Dry Eye?

June 07, 2024

A new "dry eye supplement" decreased symptoms of dry eye in a recent study - but was it enough to stop using lubricating drops? Find out more in the What It Does section of our Vision Supplements Review, which includes our Top Picks among vision supplements.

Supplements for Blood Sugar?

June 07, 2024

Recent studies suggest that Reducose, a white mulberry extract, and Jinlida, a traditional Chinese medicine, may help with blood sugar control. Learn more in our article about supplements for lowering blood sugar.

Melatonin & Vision

June 07, 2024

A strong link between melatonin use and lower risk of age-related macular degeneration was shown in a large U.S. study. For details, see the What It Does section of our Melatonin Supplements Review, which includes our Top Picks for melatonin.

Oral B-12 for Deficiency?

June 07, 2024

Can taking vitamin B-12 by mouth treat B-12 deficiency, or are injections necessary? Find out what a recent study showed in the Oral B-12 vs Injection section of our B Vitamin Supplements Review, which includes our Top Pick for high-dose B-12.

Supplements & Travel

June 07, 2024

Planning to travel? See our tips on supplements when traveling.

Blood in Urine?

June 07, 2024

Can vitamin C or other supplements cause blood in the urine and painful urination? See our answer.

Avoiding Pesticides on Fruit & Veggies

June 07, 2024

Find out which fruits and vegetables have the most pesticides even after washing, and what to do about it, in our article about cleaning produce.

How Often to Take Iron?

June 11, 2024

Is it better to take iron daily or several times per day for iron deficiency anemia? See what a recent study found in the How Much and When to Take section of our Iron Supplements Review, which includes our Top Picks among iron supplements.

Folic Acid vs Folate?

June 11, 2024

There are important differences between folic acid and folate. Get the details in our new article about folic acid and folate.

Are Water Flossers Better?

June 11, 2024

Find out if water flossers (e.g., Waterpik) are better than using string floss in our article about toothpaste and other dental products.

Magnesium for Dental Implants?

June 11, 2024

Does taking magnesium improve the outcomes of dental implant placement? Find out what a recent study showed in the Bone Health section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Xylitol & Heart Risk

June 11, 2024

The sweetener xylitol was recently linked with an increased risk of heart attacks, stroke, and death, although this does not prove cause-and-effect. Get the details in our article about sugar substitutes, which includes information about xylitol and 15 other low-calorie sweeteners.

Response to CL's Ashwagandha Results

June 11, 2024

The seller of an ashwagandha that failed to pass our recent Review claims that our test of its product was deficient and threatens action if we don’t remove the findings. See the Update in the Ashwagandha Review, which includes our Top Picks for ashwagandha, for details.

Vitamin A Caution During Pregnancy

June 14, 2024

Women who are pregnant are being advised to minimize intake of vitamin A in the retinol form (as found in some supplements and in liver), as discussed in the Concerns & Cautions section of our Vitamin A Supplements Review.

B-12 for Vegans

June 14, 2024

What happens when a vegan stops supplementing with B-12? Find out in the Vegan section of our B Vitamin Supplements Review. Also see our Top Picks for B-12 and other B vitamin supplements.

Probiotic for Bone Loss?

June 14, 2024

Did taking a probiotic reduce loss of bone mineral density in older women? Find out in the Bone density and fractures section of our Probiotic Supplements Review, which includes our Top Picks among probiotics.

Also see: Do any supplements or diets help prevent or treat osteoporosis?

Is Xylitol in Toothpaste Unsafe?

June 14, 2024

Use of Xylitol was recently linked with increased risk of heart attacks, stroke, and death, but does xylitol in toothpaste or salivary stimulants for dry mouth pose a concern? Find out in our article about toothpastes and other dental products, which inlcudes our Top Picks.

Also, find out if intake of regular sugar has been linked with heart-related concerns.

Tick and Mosquito Repellents

June 14, 2024

Are petroleum distillates (which can be toxic) used in insect repellents and insecticides? Find out in our article about insect repellents, which includes our Top Pick insect repellent (for skin) and insecticide (for clothing and gear).

Olive Oil Ratings

June 14, 2024

How do ConsumerLab’s ratings of extra virgin olive oils compare to those by Consumer Reports? Find out in the What CL Found section of our Extra Virgin Olive Oil Review, which includes our Top Picks among extra virgin olive oils.

Do Probiotics Contain Claimed Strains?

June 14, 2024

Genetic testing of popular multi-strain probiotic supplements determined how many did or did not contain their listed strains (product names were, unfortunately, not published). For details, see the Quality Concerns section in our Probiotic Supplements Review, which includes our Top Picks among probiotics.

Mouthwash Caution

June 18, 2024

A popular alcohol-containing mouthwash increased the abundance of cancer-related bacteria in the mouth. Get the details in the Mouthwash section of our article about toothpaste and other dental products, which includes our Top Pick mouthwash for bleeding gums.

Mycotoxins in Coffee?

June 18, 2024

Are popular brands of premium, organic coffee in the U.S. contaminated with mycotoxins, mold or yeast? Find out what a recent study found in our article: Is it true that most coffee is contaminated with mold?

Phthalates in Coconut Oils

June 18, 2024

A recent study detected phthalates (plasticizer chemicals) in popular coconut oils, most of which were labeled as organic. Get the details by brand, and find out if you should be concerned, in the Quality Concerns section of our Coconut Oil and MCT Oil Review, which includes our Top Picks among coconut and MCT oils.

Also see how this compares to amounts of phthalates recently found in extra virgin olive oils.

Curcumin for Fatty Liver?

June 18, 2024

Does curcumin reduce liver inflammation and scarring in people with advanced fatty liver disease? Find out in the Fatty Liver Disease section of our Turmeric and Curcumin Supplements and Spices Review, which includes our Top Picks for curcumin and turmeric.

Nicotinamide Riboside for Peripheral Artery Disease?

June 18, 2024

Does taking nicotinamide riboside improve physical capabilities in people with peripheral artery disease? Find out what a recent study found in the Nicotinamide riboside section of our NAD Booster Supplements Review, which includes our Top Picks among products.

Supplements for Sleep

June 18, 2024

Which supplements can improve sleep and which may cause insomnia? Find out in our article about supplements for sleep.

Cooking and Frying With Olive Oil

June 18, 2024

Does cooking or frying with olive oil reduce its potential health benefits? Find out in our article about cooking and frying with olive oil. Also see our Top Picks among extra virgin olive oils.

Water Pitcher Filters Compared

June 21, 2024

Recent tests of Aquagear, Brita, Clearly Filtered, and Zerowater filter pitchers revealed big differences in how well they remove PFAS ("forever chemicals") from tap water. Get the details in the Top Picks section of our Water Filter Pitchers Review.

Glycine Top Choice?

June 21, 2024

We were asked by a CL member for our top choice among glycine supplements. We have not tested glycine supplements, but we reviewed products on the market to suggest what appear to be good choices. See our top choices for glycine and learn more about it in our article about glycine.

Unlisted Plants in Herbal Supplements?

June 21, 2024

A DNA analysis of herbal supplements in 2013 suggested that many contained plants not listed on labels. However, some of those findings seem to have been made-up, according to a recent investigation. For details, see the update in the St. John’s Supplements Review.

Constipation & Supplements

June 21, 2024

See which supplements can help relieve constipation and which can worsen it. We've added a new warning about the use of senna laxatives.

Olive Oil "Not Fit for Consumption"

June 21, 2024

Some extra virgin olive oils were considered "lampante" (not fit for human consumption) by our taste tester. A CL member asked if these pose a health risk. No, they don't, but for more about what it means, see the Quality Concerns section of our Extra Virgin Olive Oil Review, which includes defects found and our Top Picks.

L-Arginine Caution

June 25, 2024

Be aware that L-arginine can cause irritation and inflammation of the esophagus and mouth based on the type of product used and how it is taken. Learn how to avoid this in the ConsumerTips section of our L-Arginine Review, which includes our Top Picks for L-arginine.

Coffee Pods & Mold

June 25, 2024

Is there a risk of mold in coffee from using old coffee pods? Find out in our article about contamination of coffee with mold.

"Double" Filtering Water?

June 25, 2024

We were asked if it is “overkill” to use a Brita filter on water already filtered by a reverse osmosis system. See our answer in the ConsumerTips section of our Water Filter Pitcher Review, which includes our Top Picks among water filter pitchers.

Ashwagandha for Cognition?

June 25, 2024

Does taking ashwagandha improve cognition or reduce fatigue? See what a recent study found in the What It Does section of our Ashwagandha Supplements Review, which includes our Top Picks among ashwagandha supplements.

Is Molasses Better Than Sugar?

June 25, 2024

Is molasses, including blackstrap molasses, better for you than sugar? Find out in our article about sugar substitutes.

How to Wash Produce

June 25, 2024

Is it okay to wash fruits and vegetables with bleach, sanitizers, or disinfectants? Find out in our article about fruit and vegetable "washes."

Peelu Chewing Gum?

June 28, 2024

Peelu Chewing Gum claims to be helpful for “cleansing and whitening” your teeth, but does it work? Find out in our article about toothpaste and other dental products.

Lead in Black (Cumin) Seed?

June 28, 2024

Does black seed (black cumin) contain lead? Find out what’s known about this in the Safety section of our article about black (cumin) seed oil.

Propolis for Fatty Liver?

June 28, 2024

Does supplementing with propolis (a waxy substance in bee hives) improve liver health among people with fatty liver disease? Find out what a study showed in our article about supplements for fatty liver disease.

Chelation Products?

June 28, 2024

Are over-the-counter chelation products, such as Detoxamin, safe and effective for removing heavy metals from the body? Find out in our article about detox supplements.

Has PUR Water Filter Changed?

June 28, 2024

A ConsumerLab member asked if the current PUR 7-Cup Water Filter Pitcher is different from what we tested 2020, so we put the question to PUR. See their answer in our Water Filter Pitcher Review, which includes our Top Picks among water filter pitchers.

Beetroot for Blood Pressure?

June 28, 2024

Did taking beetroot extract decrease blood pressure among healthy older men and women? See what a recent study found in our article about beetroot juice and supplements.

Also see how the nitrate content in popular beetroot products compare, and learn about potential side effects and interactions with beetroot.

PQQ for Cognition?

June 28, 2024

Did taking PQQ (pyrroloquinoline quinone) improve memory or cognitive function in people with mild cognitive impairment? Find out what a recent study showed in the Memory and Cognition section of our PQQ Supplements Review, which includes our Top Picks among PQQ supplements.

Why Take a Multivitamin?

June 28, 2024

A recent study found that taking a daily multivitamin was not associated with a lower risk of death in subsequent years. So, are there benefits to taking a multivitamin? Find out in the What They Do section of our Multivitamin and Multimineral Supplements Review, which includes our Top Picks among multis for men, women, and children.

July

Ashwagandha Concern

July 02, 2024

A CL member reported significant side effects with an ashwagandha extract from a well-known brand. Get the details in the Update to our Ashwagandha Supplements Review, which includes our Top Picks for ashwagandha.

How to Avoid Counterfeit Supplements

July 02, 2024

We now have information about how to safely purchase supplements -- and avoid counterfeits -- for 65 popular brands. See our article: Where to Safely Buy Real Vitamins and Supplements.

Broccoli for Knee Pain?

July 02, 2024

Does regularly eating broccoli soup reduce the pain of knee osteoarthritis? See what a recent study found in our updated article about supplements for arthritis.

Rhubarb for Constipation?

July 02, 2024

Can rhubarb root relieve constipation and is it safe? Find out in our article about supplements and foods for constipation.

"Hazardous" Vitamins and Minerals?

July 02, 2024

Find out why vitamins and minerals labeled as "hazardous" on safety data sheets can generally be safe to use in supplements.

Herbal Supplement Study Retracted

July 08, 2024

A DNA study that suggested widespread problems with herbal supplements has been retracted. Get the details in our St. John’s Wort Supplements Review.

Toothpaste Skin Reaction

July 08, 2024

Be aware that a variety of compounds in toothpaste have been linked with allergic skin reactions around the lips, according to a recent report. Get the details in our article about toothpaste and other dental products.

EpiCor for Colds and Flu?

July 08, 2024

Did taking EpiCor, a "postbiotic" supplement, reduce cold and flu symptoms when given during cold and flu season? Find out what a recent study showed in the Postbiotics section of our Probiotic Supplements Review.

Also see: Do any supplements help prevent or treat a cold?

Beetroot Safety?

July 08, 2024

Are there risks from large amounts of nitrates in some beetroot products? Find out in our article about the potential health benefits and safety of beetroot juice and supplements.

Alpha-Lipoic Acid & Low Blood Sugar

July 09, 2024

Although rare, alpha-lipoic acid may trigger an autoimmune condition that causes low blood sugar, as highlighted in a recent case. Learn more in the Concerns and Cautions section of our Alpha-Lipoic Acid Supplements Review, which includes our Top Picks among alpha-lipoic acid supplements.

Sulforaphane (from Broccoli)

July 09, 2024

A ConsumerLab member brought our attention to a "Sulforaphane" supplement that may provide a lot less sulforaphane than listed on its label. See the Update in our article about supplements for memory.

Prevagen Lawsuit

July 10, 2024

A federal judge recently approved a jury’s finding of fraudulent and deceptive statements in the marketing of Prevagen – a supplement promoted for memory improvement. For details see our article about Prevagen.

OTC Hearing Aids

July 11, 2024

Hearing aids can be purchased over the counter and self-fitted, but are users as satisfied as people fitted by an audiologist? See what a recent study showed after eight months of use in our article about OTC hearing aids.

Bottled Water & Teeth

July 11, 2024

Some popular brands of bottled water may be acidic enough to contribute to enamel demineralization, according to a recent study. Get the details by brand and learn which other beverages may be harmful to teeth in our article about other beverages may be harmful to teeth.

Beetroot & Thyroid Function

July 11, 2024

Does drinking beetroot juice reduce thyroid function? Find out what a study showed in the Concerns and Cautions section of our article about beetroot juice and supplements.

Glucosamine & Cancer Risk?

July 11, 2024

Is the use of glucosamine associated with the risk of developing cancer? See what a recent study found in the What It Does section of our Joint Health Supplements Review. Also see our Top Picks for glucosamine and other joint health supplements.

Gas & Prebiotics

July 15, 2024

Find out who is most likely to suffer gastrointestinal discomfort when taking a prebiotic supplement, and what to do about it, in the Cautions and Concerns section of our Prebiotic Supplements Review, which includes our Top Picks among prebiotics.

Cocoa & Afib

July 15, 2024

Did high-flavanol cocoa supplementation impact the risk of developing atrial fibrillation, a heart rhythm disorder, in a major study? Find out in the Cardiovascular effects section of our Dark Chocolate and Cocoa Review, which includes our Top Picks among dark chocolates and cocoa powders, supplements and nibs.

Kiwi for Constipation?

July 15, 2024

Eating kiwi fruit may slightly help with constipation, but can a kiwi fruit supplement help? See what a recent study found in our article about supplements that may help or worsen constipation.

Supplement Protects Retina

July 17, 2024

An antioxidant supplement can significantly slow the progression of advanced age-related macular degeneration of the retina, according to a major study. Get the details and see which supplement is our Top Pick for this in our Vision Supplements Review.

Overactive Bladder & Supplements

July 18, 2024

Find out if supplements are recommended for symptoms of overactive bladder (OAB) in our article about supplements for nighttime urination.

Fatty Liver: Does Vitamin E or DHA Help?

July 18, 2024

Does taking high-dose vitamin E or the omega-3 fatty acid DHA reduce liver fat in people with fatty liver disease? Find out what a recent study showed in the Liver disease section of our Vitamin E Supplements Review.

Also see out article: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Black Currant for Osteoporosis Prevention?

July 18, 2024

Does supplementing with black currant fruit extract improve bone mineral density in peri- and postmenopausal women? Find out what a recent study showed in our article about supplements and diets for osteoporosis.

Red Light Devices – More Answers

July 18, 2024

We've added more information to our recent article about red near infrared light devices about based on questions received:

Vitiligo: Does red light help with vitiligo?
Eye conditions: Is red light effective and safe for treating eye conditions , such as macular degeneration?
Joint Pain: Is Move+ Pro by Kineon cleared by the FDA for reducing joint pain?
Cleared by FDA? What is the difference between a device that has been "cleared" by the FDA as opposed to "approved" by the FDA?
Product status: What is the FDA status of Omnilux Contour Face Mask, TenDlite, PainAway, and FibroLux?
Devices vs. Sunshine? Since sunshine includes the wavelengths from red and near infrared light devices, why not just get sun exposure?

A limit on PAH compounds in oils was recently set in Europe. Should you be concerned about PAH in olive oils? Get the facts in the Concerns and Cautions section of our Extra Virgin Olive Oil (EVOO) Review, which includes our Top Picks for EVOO.

Sunscreen – When to Replace It?

August 01, 2024

Can you use sunscreen that's more than a year old? Find out in our article about finding safe and effective sunscreens.

Taking Curcumin With a Statin?

August 01, 2024

Is there a problem taking curcumin (from turmeric) when you are on a statin such as Crestor (rosuvastatin)? Find out in our article about taking supplements with statins.

SAMe Color?

August 01, 2024

A CL member asked what color SAMe (S-adenosyl-methionine) tablets should be, noting that tablets received from different brands have been different shades of yellow. See our answer in our SAMe Review, which includes our Top Pick for SAMe.

DopaBoost

August 01, 2024

How does the supplement DopaBoost compare to prescription L-dopa to manage Parkinson’s disease? Find out in our article about supplements for Parkinson’s disease.

Fish Oil to Fight Alzheimer’s?

August 05, 2024

Does taking fish oil daily slow changes in the brain associated with the development of Alzheimer's disease? Find out what a recent study showed in the Alzheimer's disease section of our Fish Oil Supplements Review, which includes our Top Picks.

Magnesium for Dizziness?

August 05, 2024

Does taking magnesium reduce dizziness in people who experience vertigo with migraine (vestibular migraine)? Find out what a recent study found in the Migraine section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.

Best Tuna

August 05, 2024

Which canned tuna has the lowest amount of mercury? See our Top Pick in our Canned Fish Review, which includes our tests of canned tuna, salmon, sardines and herring.

Chlorophyll and Sun Sensitivity

August 05, 2024

Can chlorophyllin (the form of chlorophyll in most supplements) cause sun sensitivity and blistering? Find out in our article about chlorophyll and chlorophyllin.

PerfectAmino for Muscles?

August 05, 2024

Is the essential amino acid product PerfectAmino better at making protein than other products because it includes DNA building blocks? Find out in our article about EAAs vs protein/protein supplements.

More Cinnamon Recalled

August 05, 2024

More cinnamon products are being recalled due to the potential risk of lead contamination. Get the details in the Quality Concerns section of our Cinnamon Review, and see our Top Picks among cinnamon supplements and spices (which we tested for lead and other toxins.)

Melatonin for MS?

August 08, 2024

Does taking a melatonin supplement improve sleep, reduce fatigue, or have other benefits in people with multiple sclerosis? See what a recent study found in the What It Does section of our Melatonin Supplements Review, which includes our Top Picks among melatonin supplements.

Also see: Do any supplements reduce multiple sclerosis symptoms or relapse?

Milk Thistle for Diabetes?

August 08, 2024

Does taking milk thistle lower blood sugar and cholesterol levels in people with diabetes? Find out what a recent study showed in the Diabetes section of our Milk Thistle Supplements Review, which includes our Top Pick among milk thistle supplements.

Also see: Which supplements and foods can help lower or control blood sugar?

Testosterone Boost from Ketones?

August 08, 2024

Does taking a ketone supplement boost testosterone levels? Find out what a recent study found in our article: 10 Supplements That May Boost Testosterone (And 13 That May Not)

Who’s At Risk for Iron Deficiency?

August 08, 2024

Iron deficiency appears to be common among young athletes, and this could affect athletic performance, according to a recent study. Learn more and find out who else is at risk for iron deficiency in our Iron Supplements Review. Also see our Top Picks among iron supplements.

Zinc vs. Titanium Sunscreen

August 08, 2024

Are sunscreens made with zinc oxide better than those made with titanium dioxide or a combination of the two? Find out in our article about sunscreens, which includes recommended products.

Citrus Bergamot for Cholesterol?

August 08, 2024

Does taking citrus bergamot extract lower cholesterol or help with fatty liver disease? Find out in our answers about supplements for cholesterol-lowering and fatty liver disease. Also, learn about possible side effects and interactions of this ingredient.

Apricot Seeds for Cancer?

August 08, 2024

A CL Member stated they have a friend who has been eating apricot seeds after being diagnosed with colon cancer and asked if this could be harmful. Find out in our article about supplements and chemotherapy.

Misleading SAMe on Amazon

August 08, 2024

ConsumerLab was informed of another SAMe supplement sold on Amazon with misleading labeling. See the details in the Quality Concerns section of our SAMe Supplements Review. Also see our Top Pick among SAMe supplements.

Turmeric Tea?

August 12, 2024

Is turmeric tea a good way to get curcumin (the key compound in turmeric)? Find out in the ConsumerTips section of our Turmeric and Curcumin Supplements Review, which includes our Top Picks among turmeric and curcumin supplements & spices.

Erythritol & Clot Risk

August 12, 2024

A new study suggests a link between high use of the low-calorie sweetener erythritol and increased risk of clot formation (a cardiovascular concern). Learn more in our article about the pros and cons of sugar substitutes.

High Blood Pressure from "Liver Support" Supplement

August 12, 2024

A woman developed high blood pressure after daily use of a “liver support” supplement. Find out the likely reason why in our article about licorice root tea and supplements.

Exercise and Vitamin D

August 12, 2024

Be aware that exercise may temporarily raise blood levels of vitamin D, according to a recent study. Learn more and how this might affect timing of blood tests for vitamin D in the ConsumerTips section of our Vitamin D Supplements Review.

Vitamin D for Restless Legs?

August 12, 2024

Did taking vitamin D reduce the severity of restless legs syndrome in women? See what a recent study found in the Restless legs syndrome (RLS) section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Hair Growth for Women: Minoxidil vs Finasteride

August 12, 2024

Which of these treatments was most effective for hair growth among postmenopausal women? See what a recent study found in our article about supplements and treatments for hair.

Layering Sunscreens?

August 12, 2024

Is it okay to layer sunscreens on top of one another? It can be, but it depends on the types of sunscreen you layer. Get the details in our article about sunscreens, which includes recommended sunscreens.

UVA & UVB Protection

August 12, 2024

Find out how to make sure your sunscreen provides adequate UVA and UVB protection.

Eliquis & Vitamin K?

August 14, 2024

Vitamin K can reduce the effects of blood-thinners like warfarin, but does it affect Eliquis (apixaban)? Find out in our article about supplements to avoid when taking Eliquis.

Problems with Resveratrol on Amazon

August 15, 2024

Recent tests of 30 resveratrol supplements sold on Amazon showed that most contained less than 10% of their claimed amounts. For details, see the Quality Concerns section of our Resveratrol Supplements Review, which includes our two Top Picks for resveratrol.

Tinnitus: Does Cognitive Therapy Work?

August 15, 2024

One approach to treating tinnitus (ringing in the ear) is cognitive behavioral therapy (CBT). A recent study suggests it may be most helpful for people with certain symptoms. Get the details in our article about supplements and lifestyle changes for tinnitus.

Nutrafol Vegan for Women’s Hair Growth?

August 15, 2024

Did taking Nutrafol Women's Vegan formula increase hair growth and reduce hair shedding? See what a recent study found in our article about supplements for hair.

Erythritol Risk in Dark Chocolate?

August 15, 2024

Some dark chocolate contains erythritol, which has been linked to higher risk of stroke. Find out if the amount of erythritol in Lily’s dark chocolate poses a risk in our Dark Chocolates and Cocoas Review.

OmegaXL for Joint & Muscle Pain?

August 15, 2024

See the clinical evidence for and against OmegaXL for reducing joint and muscle pain, plus safety and side effects, in our article about OmegaXL.

Best Way to Take B-12?

August 15, 2024

What’s the best way to take vitamin B-12? Find out more in our article about vitamin B-12. Also see our Top Picks for vitamin B-12 in our B Vitamin Supplements Review.

Collagen vs. Moisturizer?

August 19, 2024

Can taking collagen noticeably improve aged skin for people already using a daily moisturizer? Find out what a recent study showed in the Aging skin and wrinkles section of our Collagen Supplements Review, which includes our Top Picks for collagen supplements.

Also see: Does CoQ10 reduce wrinkles, increase skin elasticity, or tighten the skin? Are there any other supplements that can help?

Red Yeast Rice & Liver Cirrhosis

August 19, 2024

Are people who take red yeast rice less likely to develop liver cirrhosis than those who take lovastatin? See the results of a new study in the What It Does section of our Red Yeast Rice Supplements Review, which includes our Top Picks for red yeast rice.

Statins & Supplement Interactions

August 19, 2024

Which supplements should be avoided, and which may help, when taking cholesterol-lowering statins like atorvastatin (Lipitor) and rosuvastatin (Crestor)? Find out in our updated article about statins and supplement interactions.

Take a Probiotic When Intermittent Fasting?

August 19, 2024

Did taking a probiotic while intermittent fasting help with weight, cholesterol, and insulin levels? Find out what a recent study found in our Probiotics Supplements Review, which includes our Top Picks among probiotic supplements.

Finding a Salt Substitute

August 19, 2024

Trying to reduce sodium intake? See the list of good salt substitutes (which substitute potassium for sodium) in our Potassium Supplements Review. Be aware that some prepared foods already use salt substitutes, but this is not currently permitted in breads, condiments, cheeses, and other standardized products.

More Vitamin K Products Fall Short

August 19, 2024

Several popular "bone health" supplements have failed to pass our tests for having less vitamin K than listed, and the issue seems widespread according to recent market tests. For more information, see the What CL Found section of our Vitamin K Supplements Review, which includes our Top Picks among vitamin K supplements.

Iron for Restless Legs Syndrome?

August 19, 2024

Is it true that taking iron can improve symptoms of restless legs syndrome? Find out in our Iron Supplements Review, which includes our Top Picks for iron.

Certificates from Manufacturers?

August 19, 2024

Can you trust a certificate of analysis provided by a supplement manufacturer about the quality of its product? Find out.

Breastfeeding & Supplements

August 20, 2024

Learn which herbs and supplements should be avoided when breastfeeding.

Supplements When Avoiding Gluten

August 22, 2024

Going gluten-free has the potential to cause nutrient deficiencies. Learn which supplements may be needed in our new article.

Relora for Stress?

August 22, 2024

Does taking Relora (which contains magnolia and Phellodendron) reduce stress? Find out in our article about supplements for stress.

Leg Cramps and Carnitine

August 22, 2024

Does taking L-carnitine or acetyl-L-carnitine reduce leg cramps? See what research suggests in the What It Does section of our Acetyl-L-Carnitine Review.

Also see: Do any supplements, foods, or oils help reduce muscle pain, muscle cramps, or nighttime leg cramps?

Does Allulose Increase Infection Risk?

August 22, 2024

Concern has been raised that the sweetener allulose might increase the risk of infection, but what is the evidence for this? Find out in the Allulose section of our article about sweeteners, which includes our Top Picks among sweeteners.

Iron During Pregnancy

August 22, 2024

How much iron, if any, should be taken during pregnancy? Find out what a recent review concluded in the What It Does section of our Iron Supplements Review, which includes our Top Picks for iron.

Supplement for Memory?

August 26, 2024

Did Nutrilite Memory Builder improve memory and cognition in healthy, older men and women in a recent study? Find out in the Memory section of our Gingko Biloba Supplements Review, which includes our Top Pick for gingko.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Seed DS-01 Daily Synbiotic

August 26, 2024

A CL member informed us of a quality concern with this product. For details, see the Update in the Probiotics Review, which includes our Top Picks among probiotics.

Lower Cholesterol with Nattokinase?

August 26, 2024

Does taking nattokinase along with red yeast rice lower cholesterol better than red yeast rice alone? Find out what a recent study showed in the Lowering cholesterol section of our Red Yeast Rice Supplements Review, which includes our Top Pick for red yeast rice.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Maple Syrup for Heart Health?

August 26, 2024

Did maple syrup have a better effect on heart-related risk factors in overweight adults than an equal amount of table sugar in a recent study? Find out in the Maple syrup section of our article about sweeteners, which includes our Top Picks among sweeteners.

Prebiotic for Migraine?

August 26, 2024

Did supplementing with inulin, a prebiotic, reduce the frequency, severity or duration of migraine in women? Find out what a recent study showed in our Prebiotics Supplements Review, which includes our Top Pick among prebiotics.

Also see: Do any supplements or foods help with migraine? Do any trigger migraine?

Fluoride and Child IQ

August 26, 2024

Does high fluoride exposure from water affect the IQ of children? Find out in our article about fluoride exposure and neurodevelopmental risks in children.

Supplements for Muscle Loss?

August 26, 2024

What is the best supplement to prevent age-related muscle loss, and do any other supplements help? Find out in our article about supplements to prevent age-related muscle loss.

Conolidine for Pain

August 26, 2024

Does conolidine, the main ingredient in CONOCB2 relieve pain, and is it safe? Find out in our article about conolidine.

What’s Really In Avocado Oils?

August 29, 2024

Tests of store-brand avocado oils from major retailers in the U.S. and Canada found that many contained canola, soybean, or other cheaper oils. Get the details, by brand, in the Quality Concerns section of our Avocado Oils Review, which includes our Top Picks for avocado oil based on CL’s tests.

Pitavastatin-Supplement Interaction?

August 29, 2024

The statin drug, pitavastatin (Livalo), is a bit different from other statin drugs in how it interacts with supplements and foods. We’ve added information about this to our article about supplements that should be avoided or taken with statins.

Sucralose & Diabetes

August 29, 2024

Does using sucralose (Splenda) instead of sugar in coffee and tea improve blood sugar control in people with type 2 diabetes? Find out what a recent study showed in our article about sugar substitutes, which includes our Top Picks among sweeteners.

Fish Oil to Prevent Eczema?

August 29, 2024

Taking fish oil during pregnancy may decrease, or greatly increase, the risk of eczema in offspring depending on the mother’s genes, according to a recent study. Get the details in the During pregnancy: Effects on Children section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.

Lowering Cholesterol with Betaine?

August 29, 2024

Does taking betaine, also called trimethylglycine, lower cholesterol levels? See the surprising answer in our article about supplements for lowering cholesterol.

Gluten in Supplements and Prescription Pills?

August 29, 2024

How much gluten is in supplements and prescription pills, and how can you tell if a supplement or pill is gluten-free? We’ve addressed this in our article: Supplements That May Be Needed When Following a Gluten-Free Diet.

Also, find out why a gluten-free diet may lead to inadequate nutrient intake.

Does alpha-GPC, a source of choline, increase stroke risk or blood levels of TMAO (which has been linked with adverse cardiovascular effects)? Find out in our article about choline and TMAO.

Green Tea & Iron Deficiency

September 16, 2024

Severe iron-deficiency anemia was recently reported after regular consumption of green tea. Get the details in our Green Tea Review, which includes our Top Picks for green tea.

Also be aware that drinking green tea may significantly affect blood levels of a common beta-blocker, as well as statins, blood-thinners, and thyroid medication. See the Concerns and Cautions section of our Green Tea Review.

Eggshell Membrane for Osteoarthritis?

September 16, 2024

Did taking an eggshell membrane supplement (a source of collagen) improve symptoms and joint space in people with knee osteoarthritis? Find out what a recent study showed in the Joint Pain and Function section of our Collagen Supplements Review, which includes our Top Pick collagen for joints and tendons as well as our Top Pick collagen for skin.

Boswellia for Knees?

September 16, 2024

Did taking Boswellia extract, which is often promoted to reduce inflammation, reduce knee pain or improve function in people with knee osteoarthritis in a recent study? Find out in the What It Does section of our Joint Health Supplements Review, which includes our Top Pick among supplements for joints.

Also see our articles about supplements for arthritis and topical pain products with menthol.

Magnesium’s Effects on Potassium?

September 16, 2024

Low blood levels of magnesium may cause levels of potassium to fall, but getting too much magnesium may also cause problems with potassium levels. Get the details in the Taking magnesium with potassium section of our Potassium Supplements Review, which includes our Top Picks for potassium supplements.

September 19, 2024

Be aware of the risk of liver injury from use of very high dose niacin, as recently reported in an otherwise healthy, young woman who was taking niacin to manage anxiety and depression. Get the details in the Niacin (Nicotinic Acid) (B-3) section of our B Vitamin Supplements Review, which includes our Top Picks for B vitamins.

Also see: Is there a risk of liver toxicity with certain supplements?

Propolis for Vision?

September 19, 2024

Propolis is found in some eye formulas, but is there good evidence that is helps with conditions such as glaucoma, cataracts, or retinal damage? Find out in our Vision Supplements Review, which includes our Top Picks among lutein and AREDS formula supplements.

Also find out if propolis has shown benefit for fatty liver disease or arthritis.

Recently Approved Probiotic Gummy

September 20, 2024

Nature's Way 3-in-1 Probiotic Gummy was Approved and added to our Probiotics Supplements Review.

Recently Approved Gummy

September 21, 2024

Nature's Way Alive Women's Gummy Multivitamin was Approved and added to our Multivitamin/Multimineral Supplements Review.

Response to Ashwagandha Findings

September 23, 2024

A law firm representing a company that sells an ashwagandha product that failed our tests sent us a copy of test results that it claims refute our findings. We discuss this in the Update to our Ashwagandha Supplements Review, which includes our Top Picks for ashwagandha.

Protein for Vegans

September 23, 2024

Is it helpful for vegans to incorporate processed foods, like tofu or protein powders, into their diets? See what recent study suggested in our article: Top 8 vitamins and nutrients for vegetarians and vegans.

Also see our Top Picks among protein supplements, including our Top Pick for vegans.

Almonds vs. Pretzels

September 23, 2024

Did eating almonds yield greater strength or antioxidant benefits than pretzels in a recent study? Find out in our article: Can eating almonds reduce wrinkles or have other health benefits?

Cotz Sunscreen

September 23, 2024

Based on a member request, we’ve added information about CoTZ Flawless Complexion SPF 50 Lightly Tinted Sunscreen in our article about safe and effective sunscreens.

Fish Oil Plus Statins for Heart Disease?

September 23, 2024

Did taking high-dose EPA (from fish oil) reduce cardiovascular events among people with coronary artery disease who were already taking statins? And was it safe to do this? Find out what a recent study showed in the Taking with statins section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.

Toothpaste for Dry Mouth

September 23, 2024

What should you look for in a toothpaste for dry mouth? Find out and see our Top Pick toothpaste for dry mouth in our article about toothpaste and other dental products. We discuss products from Sensodyne, Biotene, and Closus, and other brands.

Also see our recommendations regarding salivary stimulants, oral moisturizers, and lifestyle modifications for dry mouth.

Cholesterol Tests & NAC?

September 23, 2024

Does N-acetyl cysteine (NAC) interfere with blood tests for cholesterol or uric acid? Find out in the Concerns and Cautions section of our NAC Supplements Review, which includes our Top Picks for NAC.

Also see: Which vitamins and supplements should be stopped before getting blood work, laboratory tests, or medical imaging?

Collagen to Reduce Fatigue?

September 26, 2024

Did supplementing with collagen peptides reduce fatigue? Find out what a recent study showed in the Fatigue section of our Collagen Supplements Review, which includes our Top Picks for collagen.

September 26, 2024

The standard cuff that comes with some popular at-home blood pressure devices may cause an inaccurate reading for some people. Learn what a recent study of devices sold on Amazon showed in the Choosing a device to monitor blood pressure section of our article about supplements for lowering blood pressure.

Estriol Cream for Wrinkles

September 30, 2024

Estriol creams are sold over-the-counter as well as by prescription. Find out if they help with wrinkles, how products differ, and if they are safe to use in our new article about estriol cream for wrinkles.

Also see our article about supplements for wrinkles.

GlucoseGoddess for Blood Sugar?

September 30, 2024

Lowering Cholesterol: Beans vs. Peas

October 02, 2024

Turmeric Supplements vs Spices

October 07, 2024

How do turmeric supplements compare to turmeric spices in terms of potentially beneficial curcumin compounds and contamination with toxic heavy metals? Find out in our article about turmeric supplements vs. spices. Also see our Top Picks among turmeric supplements and spices.

Two Deaths Linked to Kratom

October 07, 2024

At least two deaths have been linked to the same brand of kratom, which is often promoted to help treat pain, despite known health risks. Get the details in our article about the safety and potential interactions with kratom.

Psyllium Serving Size

October 08, 2024

Light Therapy for Parkinson's?

October 10, 2024

Does wearing a helmet which delivers red or near infrared light to the head (such as SYMBYX Neuro or VieLight Neuro Gamma) improve symptoms of Parkinson’s disease? Find out what research suggests in our article about light therapies. Also, find out if these helmets help people with mild cognitive impairment.

Rooibos Tea?

October 14, 2024

What are the potential health benefits of rooibos tea, how does it compare to black and green tea, and is it safe? Find out in our article about rooibos tea.

Does the FDA Regulate Supplements?

October 14, 2024

Learn what the FDA does and does not do regarding the regulation of dietary supplements, and the role of ConsumerLab.com, in our answer to the question: Does the FDA Regulate Supplements?

Getting High-Quality Protein from Food

October 14, 2024

What is the best way to get high-quality protein from food rather than from supplements? Learn our answer in our article: Getting High Quality Protein from Food.

Turmeric-Related Liver Injury

October 14, 2024

Eleven more cases of turmeric-related liver injury in the U.S. were recently analyzed. Get the details in the Concerns and Cautions section of our Turmeric and Curcumin Supplements Review, which includes our Top Picks among supplements and spices.

Also see: Is there a risk of liver toxicity with certain supplements?

HPF Cholestene Discontinued?

October 17, 2024

A CL member noted that the red yeast rice supplement HPF Cholestene is no longer sold on Amazon and asked us if it is discontinued. We explain what’s going on in our Red Yeast Rice Supplements Review, which includes our Top Pick for red yeast rice.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Wellness Formula for Colds?

October 17, 2024

The product Wellness Formula by Source Naturals is said to support the immune system to help people avoid sick days. Is there evidence of that? Find out in our article about supplements for colds.

Also see: Do any supplements help for flu?

Vitamin C & Kidney Injury

October 17, 2024

Be aware that high-dose vitamin C can contribute to kidney stones in some people and even cause kidney injury as highlighted in our Vitamin C Supplements Review, which includes our Top Picks for vitamin C.

Also see: Which supplements and foods reduce or increase the risk of kidney stones?

How Much Creatine Is Safe?

October 17, 2024

How much creatine is safe to take on a daily basis? Find out what a recent report from experts recommends in the Concerns and Cautions section of our Muscle & Workout Supplements Review, which includes our Top Picks for creatine.

October 21, 2024

What is mullein tea and does it really reduce coughing, or help ward off the flu or other viruses? Find out in our new article about the potential health benefits and safety of mullein tea.

Also see our Green Tea Review, including our Top Picks.

B Vitamin Confusion

October 23, 2024

Be aware that a B complex supplement Approved by us in 2022 has a similar name to a product NOT Approved in our most recent tests. The two products are different, as explained in the What CL Found section of our B Vitamin Supplements Review, which includes our current Top Picks for B vitamin complexes and single B vitamins.

Glucosamine Name Change

October 24, 2024

Following a legal settlement, a product tested in our Joint Health Supplements Review now identifies its glucosamine ingredient differently. For details, see the Update in the Review, which includes our Top Picks among joint health supplements.

Oat Cereals & Blood Sugar Control

October 24, 2024

Do different forms of oats affect blood sugar differently? Yes, and this also depends on how they are prepared, as discussed in the ConsumerTips section of our Oat Cereals Review, which includes our Top Picks among oat cereals.

Also see: Which supplements and foods can help lower or control blood sugar?

Top Pick Foaming Hand Soap

October 24, 2024

We’ve selected a Top Pick foaming hand soap. Get the details and learn the pros and cons of foaming versus liquid hand soap, in our article about choosing soaps that won’t irritate the skin.

Avoiding Counterfeit Mushrooms

October 24, 2024

A mushroom supplement maker has won a lawsuit against a company allegedly selling counterfeit versions of its products, including on Amazon. Details are in our article: Where to Safely Buy Real Vitamins and Supplements Online.

For ConsumerLab’s test results for mushroom supplements, see our Reishi Mushroom Supplements Review and our Lion's Mane and Chaga Supplements Review.

Omega-3 Supplements & Hemorrhage Risk

October 24, 2024

Many experts recommend intake of the omega-3’s EPA and DHA during pregnancy, but this may not be advisable during late pregnancy, as a new study found such intake to be associated with increased risk of postpartum hemorrhage. Get the details in the Concerns and Cautions section of our Fish Oil Supplements Review, which includes our Top Picks among fish oil supplements.

Also see our Top Picks among prenatal multivitamins.

Keeping Up Vitamin D

October 24, 2024

With less daylight now in the Northern Hemisphere, it's a good time to consider ways to keep vitamin D levels up. In addition to supplements, foods like salmon can help – but how and when you consume these can make a big difference, as shown in a recent study. For details, see the Getting Vitamin D From Foods section of our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Also see our Top Picks among canned and packaged fish products, including salmon.

This May Reduce Leg Cramps

Alopecia Areata

October 28, 2024

Alopecia areata is a type of patchy hair loss caused by autoimmune disease. Find out in our article about supplements for hair if any of the following supplements or topicals are recommended for this condition:

Ginseng
Glycyrrhizin
Peony
Onion
Poison primrose
Squill

Scurvy After Stomach Surgery

October 31, 2024

A man developed scurvy (due to vitamin C deficiency) years after undergoing gastric sleeve surgery. Be aware of this and other risk factors for vitamin C deficiency, in the Deficiency section of our Vitamin C Supplements Review, which includes our Top Picks for vitamin C.

Also see: Which supplements are important after bariatric surgery?

November

Arsenic in Water Linked to Heart Disease

November 01, 2024

Long-term exposure to arsenic in drinking water was linked to increased risk of ischemic heart disease in women, according to a recent study. Get the details in our Water Filter Pitchers Review. Also see how popular water filter pitchers compare on their ability to remove arsenic from water -- some remove at least 90%, while other remove less than 15%.

Also see our Top Picks among water filter pitchers.

COVID and Flu Home Tests Compared

November 01, 2024

There are now 38 different COVID-19 home antigen tests (7 that also test for flu), but we found big differences in how well they detect COVID (ranging from 59.7% to 96.6% sensitivity) and avoid false negatives. See our comparison chart and learn our Top Picks for testing for COVID and COVID/Flu.

Also, every U.S. household is now eligible to get 4 at-home COVID-19 tests. Find out how (unfortunately, you can’t choose the brand).

Try Taking Cinnamon This Way

November 04, 2024

A recent study suggested that taking cinnamon as a powder may be better for controlling blood sugar than taking it as a capsule. For details, see our Cinnamon Supplements and Spices Review, which includes our Top Picks among cinnamon supplements and spices.

Also be aware that the FDA recently reported high levels of lead in yet another cinnamon powder.

Reusing N95 Masks?

November 04, 2024

How many times can an N95 respirator be reused before it no longer properly filters out particles? Learn what a recent study showed in our updated article about Choosing the Best Mask, which includes our Top Picks among N95 and KN95 masks.

The ‘Pause Menopause Supplements?

November 04, 2024

Are The 'Pause Nutrition supplements by Dr. Mary Claire Haver (author of The New Menopause) worth the price? See our take on this line of supplements.

Melatonin Problems

November 04, 2024

A recent study found many problems with melatonin supplements for kids. Get the details in the Quality Concerns section of our Melatonin Supplements Review, which includes our Top Picks for melatonin.

Can you get too much protein?

November 13, 2024

High levels of mercury were recently reported in canned tuna sold in several European countries. See how these levels compare with those CL found popular tuna products sold in the U.S. in the Quality Concerns section our Canned and Packaged Fish Review.

Also see our Top Picks for tuna, salmon, sardines, and herring.

Hemp Seed Benefits?

November 14, 2024

What are hemp seeds and does eating them help with heart health, diabetes, or boosting testosterone? Find out in our article about the benefits, safety, and what to consider when picking a product.

Also see our test results for:

Supplements for Eczema

November 14, 2024

We published a new article about supplements for atopic dermatitis – the most common form of eczema.

Bottled Water vs. Tap Water

November 18, 2024

Is bottled water or tap water better for you? Find out in our new article: Is Bottled Water Better Than Tap Water?

Urolithin A for Vision?

November 18, 2024

Can urolithin A supplementation help prevent age-related macular degeneration, a common cause of blindness? Find out what research suggests in our article about urolithin A.

Supplement for Hand Osteoarthritis?

November 18, 2024

Does taking a combination of Boswellia extract, curcumin, MSM, and pine bark extract reduce pain or improve function and quality of life among people with hand osteoarthritis? Find out what a recent study showed in the Boswellia section of our Joint Health Supplements Review, which includes our Top Pick for boswellia.

Also see: Which supplements help with arthritis?

Cognivia for Cognition?

November 18, 2024

Did Cognivia, a sage extract (in supplements such as Sharpmind Memory) improve cognitive function in a recent study? Find out in our article about supplements for cognition and memory.

Casein for Sleep?

Laughing Gas & B-12

November 21, 2024

Although rare, be aware that use of nitrous oxide (i.e. laughing gas), such as during a medical procedure, can inactivate vitamin B-12 in the body. Let medical professionals know if you are B-12 deficient. Get the details in the B-12 section of our B Vitamin Supplements Review. Also see our Top Picks for vitamin B-12 and other B vitamin supplements.

Reviews & Articles

Membership & Subscription

About ConsumerLab.com

About Testing

News

Clinical Updates

2024

January

Probiotics in Hot Tea?

January 05, 2024

Vitamin D For Cough & Colds?

January 05, 2024

Vitamin K2 & Breast Cancer

January 05, 2024

PEA & Thyroid Function

January 05, 2024

Getting C15:0 Fatty Acid from Food?

January 05, 2024

How to Identify Produce That's Coated?

January 09, 2024

Xylitol and Blood Sugar

January 09, 2024

Ceramides and Blood Pressure?

January 09, 2024

Probiotic for Gout?

January 09, 2024

High-Dose Fish Oil for Heart Attack Recovery?

January 09, 2024

BPA & Phthalates in Canned Fish?

January 09, 2024

Oats vs Supplement for Cholesterol?

January 09, 2024

ConsumerLab Finding Prompts Recall

January 12, 2024

Comparison of Pine Bark Extracts

January 12, 2024

Pricey Toothpaste for Gum Health?

January 12, 2024

Shilajit for Collagen and Bone?

January 12, 2024

How to Take C15:0 Fatty Acid

January 12, 2024

L-Theanine for Fatigue?

January 12, 2024

Fish Oil Plus Statins?

January 16, 2024

Dark Chocolate for Focus?

January 16, 2024

A Better Ashwagandha Extract?

January 16, 2024

Trigonelline?

January 16, 2024

Lysine for Sleep?

January 16, 2024

Premen-Calm for PMS?

January 16, 2024

How to Store Protein Powder

January 19, 2024

Protein Powder Allergy?

January 19, 2024

Pycnogenol for Hearts and Eyes?

January 19, 2024

Risks with Plant-Based Milks for Young Children

January 19, 2024

Hyaluronic Acid for Joint Pain?

January 23, 2024

Melatonin for Brown Patches?

January 23, 2024

Chamomile and Bleeding Risk?

January 23, 2024

Best Colostrum?

January 23, 2024

Multivitamin for Memory?

January 23, 2024

Is Protein Powder Ultra-Processed?

January 23, 2024

Is Manuka Honey Safe?

January 23, 2024

Help for Stressed Dogs?

January 25, 2024