Product Reviews and Information for Stress
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CL Answer
Do any supplements help relieve stress?
Are there actually supplements for stress relief and panic attacks? Learn more about holy basil, fish oil, L-theanine, and ginseng.
Product Review
Ashwagandha Supplements Review
Find the Best Ashwagandha Supplement. Only 38% of Ashwagandha Products Pass Tests.
Product Review
GABA Supplements Review
Does GABA Work As a Supplement?
Product Review
L-Theanine Supplements Review
Touted for Stress Relief, Do L-Theanine Supplements Work?
Product Review
Holy Basil Supplements Review
Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.
CL Answer
What is GABA (gamma-aminobutyric acid)? Is it beneficial for stress, anxiety, insomnia or other conditions, and is it safe?
Find out about GABA (gamma-aminobutyric acid), including if it's beneficial for insomnia, epilepsy, stress and anxiety, high blood pressure and building muscle, and learn if taking GABA supplements is safe.
Product Review
Valerian Supplements Review
Choose the Best Valerian Supplement. Strength and Contamination Vary Widely Among Popular Valerian Brands.
CL Answer
What is hydrogen water? Is it beneficial for alertness, athletic performance, arthritis or other conditions, and is it safe?
Find out if hydrogen water has benefits with regard to alertness, side effects of radiotherapy in cancer patients, metabolic syndrome, athletic performance, rheumatoid arthritis, liver disease, and other conditions, and learn if it is safe to use.
Product Review
Probiotic Supplements Review (Including Pet Probiotics)
Probiotics: See What They Really Contain and Our Top Picks
CL Answer
Adrenal Fatigue and Adrenal Support Supplements: Do they work and are they safe?
Find out what's really in supplements for adrenal support and adrenal fatigue, including herbal adrenal support supplements and bovine derived adrenal support supplements. Find out if they really work and if they are safe. ConsumerLab.com's answer explains.
Clinical Update
5/07/2024
Ashwagandha for Stress?
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?
Clinical Update
8/11/2023
Probiotics for Stress?
Did taking probiotics reduce stress in recent studies? Find out in the Stress section of our Probiotics Supplements Review.
Also see: Do any supplements help relieve stress?
CL Answer
What are the health benefits of holy basil extract?
Learn about the health benefits of holy basil leaf extract. See the clinical evidence for and against holy basil extract for lowering blood sugar in people with type 2 diabetes, reducing anxiety and stress, boosting the immune system, and reducing the pain and inflammation of arthritis. ConsumerLab.com's answer explains.
Product Review
NAC (N-Acetyl Cysteine) Supplements Review
Choose the Best N-Acetyl Cysteine Supplement. See Our Tests of Popular NAC Supplements and Top Picks for Quality and Value.
CL Answer
What is Protandim and does it really work?
What is Protandim and does it really work? Can Protandim reduce oxidative stress? ConsumerLab's answers discusses Protandim's effectiveness, reviews and studies.
Product Review
CBD Oils, Softgels, Gummies, Creams & Salves Review
See How Much CBD and THC We Found in Products.
CL Answer
Rhodiola and ashwagandha are both promoted to help with stress and anxiety. Is it safe to take them at the same time?
Find out if it is safe to take ashwagandha and rhodiola together. Both herbs are promoted to help with stress and anxiety, but may also lower blood pressure and have other side effects. ConsumerLab.com's answer explains.
Product Review
Saffron Supplements Review
See How Saffron Supplements Compare and What They Do
Clinical Update
9/17/2019
Ashwagandha for Stress and Anxiety
Can ashwagandha decrease symptoms of anxiety and lower levels of a stress hormone? See what a new study found in the Anxiety, Stress and Insomnia section of the Ashwagandha Supplements Review. Also see our Top Pick for ashwagandha.
Clinical Update
7/07/2023
Saffron for Stress?
Can saffron reduce stress and anxiety? See what a recent study found in the What It Does section of our Saffron Supplements Review, which includes our Top Picks among saffron supplements.
Also see: Do any supplements help relieve stress?
Clinical Update
8/22/2024
Relora for Stress?
Does taking Relora (which contains magnolia and Phellodendron) reduce stress? Find out in our article about supplements for stress.
CL Answer
Will pregnenolone help slow down aging or reduce chronic pain?
Learn more about the steroid hormone pregnenolone, including its effects in the body and on aging and chronic pain.
CL Answer
Is there a danger of getting too much calcium from Tums? I take them frequently for heartburn.
How many Tums should you be taking? Learn more about exceeding the recommended daily intake of calcium with Tums.
CL Answer
Does Alpha Brain really improve memory, focus and cognition?
Find out if Alpha Brain really improves memory, focus and cognition. See the clinical evidence and get details about Alpha Brain ingredients, as well as potential side effects and drug interactions. ConsumerLab.com's answer explains.
CL Answer
Are antioxidant supplements good or bad for you?
Learn more about whether antioxidants like astaxanthin, beta-carotene, coenzyme Q10, curcumin, resveratrol, selenium, vitamin A, vitamin C and vitamin E are safe and if they help prevent chronic diseases.
Product Review
Fish Oil, Krill Oil, and Algal Oil Omega-3 (DHA & EPA) Supplements Review
See Our Omega-3 Top Picks and Avoid Rancid Fish Oils.
CL Answer
Do any supplements help with pancreatitis? Do any cause pancreatitis?
Find out if supplements including digestive enzymes, antioxidants, or medium-chain triglycerides are beneficial for chronic pancreatitis, and learn which supplements might worsen symptoms.
CL Answer
How does Athletic Greens’ AG1 compare to multivitamins and Greens powders? Is AG1 worth it?
ConsumerLab reviews the ingredients in AG1, its safety and possible side effects, and how AG1 compares to other products.
Product Review
Vitamin C Supplements Review
Find the Best Vitamin C Supplements
Clinical Update
4/19/2019
CBD for Post-traumatic Stress Disorder (PTSD)?
Can moderate doses of CBD help people with post-traumatic stress disorder? See the latest clinical findings in the What It Does section of the CBD Oil and Hemp Extract Supplements Review. Also see our Top Picks for formulations of CBD.
Clinical Update
2/25/2020
Does Ashwagandha Lower Stress?
A widely available ashwagandha extract was recently tested for its ability to reduce stress, at two different doses. Find out if either worked in the What It Does section of the Ashwagandha Supplements Review. Also see our Top Pick for ashwagandha.
Clinical Update
2/25/2017
Lutein for Stress?
Supplementing with lutein can help some people protect against macular degeneration of the eye. A new study suggests it may also reduce stress. For details, see the "What It Does" section of the Review of Vision Supplements with Lutein and Zeaxanthin (which includes our tests of products) >>
Clinical Update
12/05/2017
Fish Oil for Stress?
A recent study investigated whether taking fish oil rich in the omega-3 fatty acid EPA would reduce chronic stress. See the results in the "What It Does" section of the Fish Oil Supplements Review >>
Clinical Update
6/16/2013
Fish Oil and Stress
A new study shows that fish oil may slightly blunt some of the effects of mental stress. Get the details, plus our quality ratings of 74 supplements, in the updated Fish Oil and Omega-3 Fatty Acid Supplements Review >>
Clinical Update
10/13/2023
Ashwagandha for Stress?
Ashwagandha is widely promoted to reduce stress, but does it really work? See what a recent study found in the What It Does section of our Ashwagandha Supplements Review. Also see our Top Picks for ashwagandha.
Clinical Update
1/26/2024
Help for Stressed Dogs?
Does CBD reduce stress in dogs during car rides? See what a recent study showed in our CBD Review, and see our Top Picks among products for pets.
Clinical Update
2/08/2022
L-Theanine for Stress?
Can L-theanine supplementation reduce stress during demanding tasks? See the latest evidence in the What It Does section of our L-Theanine Supplements Review.
Clinical Update
11/30/2021
Ashwagandha for Stress?
Does ashwagandha supplementation reduce stress? See what a new study found in the What It Does section of our Ashwagandha Supplements Review.
Clinical Update
9/30/2024
Ashwagandha for Stress & Anxiety
Did taking a low daily dose of ashwagandha reduce stress and anxiety for people with generalized anxiety disorder? Find out what a recent study showed in the Anxiety section of our Ashwagandha Supplements Review, which includes our Top Picks for ashwagandha.
Product Review
Prebiotic Supplements Review
You Can't Tell How Much Fiber Is Really In Most Prebiotics Without Testing
CL Answer
Can any supplements reverse gray hair?
Nearly 75% of adults aged 45 to 65 are affected by gray hair. Learn about what causes gray hair and find out if any supplements can help.
CL Answer
Does Rooibos Tea Have Health Benefits and Is It Safe?
Learn about the health benefits of rooibos tea, including red and green, unfermented rooibos tea, how is differs from black and green tea, safety, and potential drug interactions with rooibos tea.
CL Answer
What are the health effects of apigenin and is it safe?
Apigenin, a flavonoid compound, is promoted for sleep, depression, cancer, and other conditions. Find out if it works and if it's safe.
Clinical Update
5/04/2019
Probiotic for Anxiety?
A number of studies have evaluated probiotics for reducing anxiety, stress, and depression. See the results of the latest study in the What It Does section of the Probiotic Supplements Review. Also see our Top Picks among probiotics.
Clinical Update
5/03/2017
Ashwagandha Improves Memory
An 8-week study among men and women with mild cognitive impairment found ashwagandha root extract to improve many aspects of cognitive function compared to placebo. Studies have shown a range of benefits with ashwagandha, particularly in reducing stress and anxiety, although studies have been small. For details, see the "What It Does" section of the Ashwagandha Supplements Review >>
Clinical Update
6/11/2019
Does Dark Chocolate Improve Mood?
A recent study evaluated whether eating dark chocolate improved mood and reduced levels of cortisol, a stress hormone. See the results in the What It Does section of the Dark Chocolate and Cocoa Review. Also see our Top Picks among products.
Clinical Update
7/31/2019
Dark Chocolate & Depression?
Are people who consume dark chocolate less likely to be depressed? Find out what a recent study showed in the Mood and Stress section of the Dark Chocolates and Cocoa Powders Review. Also see our Top Picks for dark chocolates and cocoa powders.
Clinical Update
10/05/2019
L-Theanine for Sleep and Cognition?
Several studies have evaluated whether a single dose of L-theanine (found in green tea) can reduce stress and anxiety. A new study has evaluated the effect of L-theanine when taken daily for several weeks. See the results in the What It Does section of the L-Theanine Supplements Review. Also see our top choices for L-Theanine.
Clinical Update
5/27/2020
Ashwagandha for Better Sleep?
Ashwagandha, which is often used for anxiety and stress, was recently tested in people with insomnia. Did it help them fall asleep? Find out in the What It Does section of the Ashwagandha Supplements Review. Also see our Top Pick for ashwagandha.
Clinical Update
7/23/2017
Does MSM Help Joints and Muscles?
MSM (methylsulfonylmethane) is commonly in supplements for joint and muscle pain, although the evidence behind it has been limited. Its effectiveness in reducing pain, muscle damage, and oxidative stress was recently evaluated in people running a half-marathon. See the results in the "What It Does" section of the Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, and Boswellia), which includes our Top Picks among products.
Clinical Update
9/22/2023
Cacao Flavanols for Mood?
Did drinking a beverage containing cacao flavanols improve mood in a recent study? Find out in the Mood and Stress section of our Dark Chocolates and Cocoa Powder Review, which includes our Top Picks for dark chocolate and cocoas.
Clinical Update
9/25/2021
Dark Chocolate for Mood?
A recent study investigated the effects of consuming dark chocolate on mood. The effect depended on cocoa level. See the results in the Mood and Stress section of our Dark Chocolate and Cocoa Review. Also see our Top Picks among dark chocolate bars and cocoa products.
Clinical Update
2/07/2021
Saffron for Mood?
Does saffron extract improve mood in people feeling down and anxious or stressed? See what a new study found in our article about Supplements for Depression and Anxiety.
Clinical Update
1/12/2024
L-Theanine for Fatigue?
Did drinking a beverage containing L-theanine, with or without CBD, reduce fatigue? See what a recent study showed in the Stress, sleep and cognition section of our L-Theanine Review, which includes our Top Picks for L-theanine.
Also see: Which supplements help to improve energy and decrease fatigue?
CL Answer
What are the best supplements for depression and anxiety?
Best natural supplements for depression and anxiety, including the evidence for fish oil, vitamin D, probiotics, and herbal supplements for depression such as curcumin (from turmeric) and saffron.
Product Review
CoQ10 and Ubiquinol Supplements Review
Find the Best CoQ10 and Ubiquinol Supplements and Learn How They Differ
Clinical Update
11/17/2013
Latest Supplement Recommendations
New draft recommendations on vitamin and mineral supplement use were published this week by the U.S. Preventive Services Task Force. The recommendations apply only to healthy adults without nutritional deficiencies. They focus only on the use of supplements for the prevention of cardiovascular disease and cancer at doses not exceeding tolerable upper intake levels. The recommendations are based on existing science and are generally consistent with information already presented in ConsumerLab.com's Product Reviews. We have summarized the recommendations below, with links to more information in ConsumerLab.com's reports:
- Beta-Carotene and Vitamin E: Supplementation with either does not provide a benefit. Vitamin E does not pose a risk of harm, but beta-carotene increases the risk of lung cancer in people at risk for lung cancer.
- Other Single Vitamins, Minerals, Pairs, and Multivitamins: There is inadequate evidence regarding a benefit or a risk of harm.
Product Review
B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)
See Our Top Picks and Which 5 Failed Testing
CL Answer
What are the side effects of ashwagandha supplements?
Learn about the safety and side effects of ashwagandha supplements, including headache, sleepiness, upset stomach, blood pressure and more. ConsumerLab.com's answer explains.
CL Answer
What is Brain Bright and can it really improve memory or cognition?
Learn more about BrainBright, including clinical studies on memory and cognition, safety, and cost.
CL Answer
Do any supplements help with fatty liver disease? Are some diets more beneficial than others?
Find out if supplements such as vitamin E, fish oil, milk thistle, curcumin, choline, probiotics, vitamin D, reishi mushroom, or extra virgin olive oil are beneficial for fatty liver disease and learn which diet (Mediterranean, ketogenic, DASH, or fasting diets) seems to have greatest benefit.
CL Answer
Which supplements reduce the risk of stroke? Which increase the risk of stroke?
Find out which supplements (may help reduce the risk of stroke/might increase the risk of stroke.)
CL Answer
Do glutathione supplements work to prevent aging or for other conditions?
Do glutathione supplements help with aging or other conditions such as cancer and diabetes?
CL Answer
Which supplements help with Raynaud's phenomenon?
Raynaud's phenomenon may be helped by some supplements. Learn more about fish oil, Gingko biloba, and ginseng.
CL Answer
Which supplements have been shown to be helpful for autism?
Find out which supplements may help reduce symptoms of autism, including multivitamins, probiotics, and melatonin.
Product Review
Dark Chocolates, Cocoa & Cacao Powders, Nibs, and Supplements Review -- Sources of Flavanols
Is Your Chocolate or Cocoa Healthful or Toxic? Find the Best Dark Chocolate, Cocoa Powder and Cocoa Supplements Based On Our Tests.
CL Answer
After taking a curcumin supplement, I started getting chronic diarrhea which went away when I stopped taking it. Can curcumin supplements cause diarrhea?
Learn more about the side effects of curcumin supplements, including diarrhea and other gastrointestinal discomfort.
Product Review
Vision Supplements Review (with Lutein, Zeaxanthin & AREDS2 Formulas)
Find the Best Vision Supplement Based Our Tests
Recalls & Warnings
November 21, 2024
Douglas Labs Stress-B-Plus Recalled
On October 7, 2024, Nestle Health Science (NHS U.S., LLC) issued a recall of two lots of Douglas Labs Stress-B-Plus because it contains incorrect information on the label.
News Release
May 23, 2024
ConsumerLab Finds Little Ashwagandha in Most Ashwagandha Supplements
White Plains, NY, May 23, 2024 — Ashwagandha is often promoted to decrease stress and anxiety, and improve sleep and cognition.
Product Review
Melatonin Supplements Review
Trouble Sleeping? See CL's Tests of Melatonin Supplements and Top Picks.
CL Answer
How do the COVID-19 vaccines compare in terms of efficacy, safety and side effects? How, when and where do I get the COVID-19 vaccine?
Find out how the COVID-19 vaccines from Pfizer and Moderna compare and learn how when and where you can get the COVID-19 vaccine.
CL Answer
Do any supplements naturally suppress appetite and help with weight loss?
Learn which natural ingredients can suppress appetite and find if these natural appetite suppressants help with weight loss.
CL Answer
What is TUDCA (tauroursodeoxycholic acid)? Does it have any proven health benefits, and is it safe?
TUDCA information, including its potential health benefits, safety, possible interactions, and cost.
CL Answer
Can any vitamins or minerals help prevent or reduce canker sores or cold sores?
Find out which, if any, supplements, including iron, L-lysine, monolaurin, olive leaf extract, vitamin B-12, and zinc, may be beneficial for canker sores or cold sores.
CL Answer
I'm considering taking vitamin K for my bones, but I take blood thinner (anticoagulant) medication. Is there a problem taking both?
Learn more about vitamin K, including info on interactions with blood thinners such as Coumadin and Jantoven, its effects on bones & impact on clotting.
CL Answer
My HDL (good) cholesterol level is low. Should I take niacin to raise my HDLs?
Learn more about niacin and find out if it can raise HDL ("good") cholesterol levels.
CL Answer
Do magnesium supplements, like Magtein, help memory or protect against Alzheimer's disease?
Magtein, and other magnesium supplements, may help memory and protect against Alzheimer's disease.
CL Answer
Is echium oil a good alternative to fish oil? I am allergic to fish.
Echium oil as an alternative to fish oil. Learn more for those with fish allergies, including information on omega-3 fatty acids.
CL Answer
Can drinking coffee prevent gallstones? Can supplements help?
Information about the impact coffee has on gallstone disease. Plus, supplements that have been proposed to help with gallstone pain.
CL Answer
What is Noopept? Can it really improve memory and cognition, and is it safe?
Learn more about Noopept, including results from clinical studies on cognition, safety, and dosage.
CL Answer
Which supplements reduce hearing loss?
Can supplements such as alpha-lipoic acid, magnesium, N-acetyl-cysteine, folate or vitamins B-12, C and/or E help prevent or improve symptoms among people with hearing loss due to excessive noise or aging? Find out what the clinical evidence shows, and learn whether Advanced Hearing Formula, a supplement marketed for ear health, is likely to help.
CL Answer
Are There Supplements That Help Treat POTS (Postural Orthostatic Tachycardia Syndrome)?
Find out which supplements and lifestyle changes may be helpful for people with Postural Orthostatic Tachycardia Syndrome (POTS).
Recalls & Warnings
February 24, 2023
Bountiful Charged with “Review Hijacking,” False Advertising of Nature’s Bounty Supplements on Amazon
On February 16, 2023, the Federal Trade Commission (FTC) charged The Bountiful Company (formerly NBTY), whose brands include Nature’s Bounty and Sundown, with deceptively using Amazon reviews and badges (such as “#1 Best Seller” and “Amazon’s Choice”) from its ...
CL Answer
Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
Learn which supplements can ease tinnitus, including melatonin and pine bark extract. Understand which may actually cause tinnitus.
News Release
March 09, 2023
L-Theanine Supplements Reviewed by ConsumerLab. Top Pick Chosen.
White Plains, New York, March 9, 2023 —L-theanine supplements are often promoted to reduce stress and improve sleep and cognition.
Product Review
Rhodiola Rosea Supplements Review
Do Rhodiola Supplements Help With Depression and Anxiety? Find Out and See Which Rhodiola Supplements Provide the Best Quality & Value.
Product Review
Glutathione Supplements Review
Learn How Glutathione Products Differ, Which Failed, and Our Top Picks
CL Answer
Is it possible to take too much vitamin C?
Find out the daily value of vitamin C, along with possible side effects of excessive vitamin C intake. ConsumerLab explores the topic of proper vitamin C supplement usage, and why taking too much can be harmful.
CL Answer
Which supplements can help with indigestion and/or heartburn?
Information on supplements for heartburn that can help relieve gastrointestinal symptoms - heartburn, indigestion and acid reflux.
CL Answer
Which supplements can help me sleep and which cause insomnia?
Find out which supplements may improve sleep, including melatonin, L-tryptophan, and magnesium, and which may make sleeping more difficult.
Product Review
Vitamin E Supplements Review
Find the Best Vitamin E Supplement. Tests and Reviews of Popular Vitamin E Supplements & CL's Top Picks.
Product Review
Ginseng Supplements Review
Find the Best Ginseng Supplement. Key "Ginsenosides" Found to Range 10-Fold Across Products.
CL Answer
Do any supplements help for ulcerative colitis?
Find out what supplements & vitamins can help with ulcerative colitis, such as VSL#3, curcumin, aloe or boswellia.
CL Answer
What are the health benefits of zinc carnosine, also called polaprezinc, and is it safe?
Find out if zinc carnosine is beneficial for any GI conditions, including stomach ulcers, Helicobacter pylori infection, taste disturbances, aspirin-induced small-bowel injury and oral mucositis, and learn if it is safe.
CL Answer
Does Bacopa extract improve memory, mood, or sleep? Is it safe?
Find out if bacopa improves memory and cognition, mood or sleep, and whether it's been shown to be helpful in people with Alzheimer's disease or dementia. Plus, learn about the safety and common side effects of bacopa.
CL Answer
Does ergothioneine help prevent age-related problems such as impaired cognition, Alzheimer’s disease, Parkinson’s disease or cataract, and is it safe?
Learn about ergothioneine and its potential use for cognitive impairment, dementia, Alzheimer's disease, Parkinson's disease, cataract, or kidney disease, as well as its safety and cost of supplements containing this ingredient.
CL Answer
Does urolithin A reduce age-related muscle decline, osteoarthritis, or other age-related diseases?
Find out if urolithin A may improve age-related muscle decline and learn about its safety.
CL Answer
How are you staying healthy during the coronavirus pandemic?
Tips for staying healthy during the coronavirus (COVID-19) pandemic. Tips from ConsumerLab members for maintaining physical health, mental health and social well-being during COVID-19.
News Release
February 23, 2023
Best GABA Supplements Identified by ConsumerLab
White Plains, New York, February 23, 2023 — GABA (gamma-aminobutyric acid) supplements are claimed to have a "calming" effect, and are often promoted to reduce stress and insomnia and improve cognitive performance.
Recalls & Warnings
May 30, 2024
Young Living Essential Oils Agrees to Pay $5 Million to Settle Lawsuit
Young Living Essential Oils has agreed to pay up to $5 million to settle a class action lawsuit that charged the company with promoting its essential oils to reduce stress and anxiety, improve sleep, and other health-related claims without reliable scientific evidence.
Product Review
Turmeric and Curcumin Supplements and Spices Review
See Our Top Picks Among Turmeric Products
CL Answer
Do any supplements or diets help prevent or treat osteoporosis?
If you have osteoporosis, you may be interested in supplements or diets for bone health. Find out which can increase bone strength and density.
CL Answer
My doctor told me to stop taking supplements because my kidney function was low. After stopping, my kidney function returned to normal. Can taking a lot of supplements really damage the kidneys?
Find out which supplements may damage your kidneys. ConsumerLab explores possible kidney side effects of supplements including chromium, creatine, and vitamin C.
CL Answer
I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?
Supplement interactions with proton pump inhibitor (PPI) drugs like omeprazole (Prilosec) and Nexium.
CL Answer
Can taking too much vitamin B-12 be dangerous? The label on my B-complex states it contains 50,000% of the Daily Value!
Find out the daily value for vitamin B-12 and the potential side effects of taking too much B-12. ConsumerLab explains why taking too much vitamin B-12 can be harmful.
CL Answer
Is it true that there are bits of plastic in drinking water, specialty salts, or other foods and beverages? How concerned should I be?
Microplastics are tiny pieces of plastic that can end up foods and beverages. Learn about microplastics found in drinking water and specialty salts. ConsumerLab.com's answer explains.
Recalls & Warnings
January 12, 2023
FDA Warns Two Sellers Promoting CBD to Treat COVID-19
On January 10, 2023, the FDA issued warning letters to two companies following a review that found statements made on the companies’ websites to be drug claims because they promoted the cannabidiol (CBD) products to prevent or treat COVID-19.
Recalls & Warnings
May 04, 2023
FDA Warns MedoLife for Promoting Homeopathic Products to Treat COVID-19, Cancer
On April 19, 2023, the FDA issued a warning letter to Medolife Rx D/B/A MedoLife Corp., AELIA Inc. and Queanta Inc.
News Release
April 03, 2020
Tests of Holy Basil Supplements Show 63% Fail on Quality -- ConsumerLab Tests Reveal the Best and Worst Holy Basil Supplements
White Plains, New York, April 3, 2020 — Holy basil supplements are promoted to reduce stress and anxiety, lower blood sugar, and strengthen the immune system.
CL Answer
What are CoQ10 side effects?
CoQ10 side effects, such as nausea, headache, and insomnia, and how you can reduce the occurrence of CoQ10 side effects. ConsumerLab.com's answer explains.
CL Answer
Do any supplements help for irritable bowel syndrome (IBS)?
IBS supplements may help reduce irritable bowel symptoms such as pain, diarrhea and constipation. Supplements include probiotics, melatonin, and flaxseed.
CL Answer
Do supplements help with Parkinson’s disease treatment or prevention?
Learn what has been shown with vitamins D and E, niacin, CoQ10, melatonin, creatine, SAMe, NAC, valerian, CoQ10, and CBD, as well as with coffee and the Mediterranean and MIND diets for treating and/or preventing Parkinson's disease.
CL Answer
What is lumbrokinase, does it have heart benefits, is it safe, and what should you look for, or avoid, in a lumbrokinase supplement?
Lumbrokinase is marketed as promoting healthy circulation and supporting heart health. Find out how and if lumbrokinase supplements actually work, possible safety concerns, and what to consider when choosing a lumbrokinase supplement.
CL Answer
Butyrate Supplements for Gut Health: Does butyric acid really work and is it safe?
Can butyrate supplements improve gut health or help reduce symptoms of irritable bowel syndrome (IBS) or Crohn's disease? Find out what the clinical evidence shows, learn about the different forms of butyrate, including sodium butyrate, calcium-magnesium butyrate, and tributyrate, and get details about products such as BodyBio Sodium Butyrate and Healus Complete Biotic Tributyrin, dosage, safety and cost.
CL Answer
Which supplements may help with PCOS (polycystic ovarian syndrome)?
Many supplements are promoted to help treat symptoms of PCOS (polycystic ovarian syndrome), but do they really work? See the clinical evidence for inositol (myo-inositol and D-chiro-inositol), alpha lipoic acid, vitamin B-12, folic acid, vitamin D and more.
Recalls & Warnings
August 25, 2022
Oregon’s Wild Harvest Warned by FDA for Manufacturing Violations
On July 8, 2022, the FDA issued a warning letter to Oregon’s Wild Harvest, Inc.
Recalls & Warnings
September 21, 2023
Moor Herbs, Inc Warned for Manufacturing Violations, Drug Claims
On August 1, 2023, the FDA issued a Warning Letter to Moor Herbs, Inc.
News Release
May 31, 2018
ConsumerLab Identifies the Best Valerian Supplements -- Strength, Quality and Cost Vary Widely Among Popular Brands
White Plains, New York, May 31, 2018 — Valerian is often promoted as a sleep aid and to help with anxiety. But does it really work, and if so, which products are best? To find out, ConsumerLab recently purchased and tested popular valerian supplements sold in the U.S.
Recalls & Warnings
August 14, 2020
The Green Herb and New Genesis Health Warned for Manufacturing Violations
On July 31, 2019, the FDA issued a warning letter to Davis Ventures, Inc.
Recalls & Warnings
February 22, 2021
FDA Warns Sellers of St. John's Wort
On February 18, 2021, the FDA issued warning letters to two companies following reviews of the companies' websites, which found statements made about the companies' St. John's Wort products to be drug claims. These products include St.
CL Answer
Which supplements and lifestyle changes improve sleep, and which cause insomnia?
Find out which vitamins may help you sleep and learn if any vitamins or supplements can cause insomnia.
CL Answer
What is Pycnogenol, does it work, and is it the same as other pine bark extracts?
Learn more about Pycnogenol, including evidence from clinical studies on blood clots, osteoarthritis, cognition, vision, tinnitus, and the skin and safety.
CL Answer
Do any supplements help for flu?
Which supplements may help prevent or reduce symptoms of colds or the flu, including vitamin D, ginseng, NAC, and elderberry.
CL Answer
Do any supplements or foods help with migraine? Do any trigger migraine?
Find out if supplements such as magnesium, CoQ10, riboflavin, butterbur, feverfew and others help with migraine. Also learn about foods that may trigger migraine, including chocolate and watermelon.
CL Answer
Do any supplements, like Nervive, help with nerve pain, like sciatica, diabetic neuropathy or postherpetic neuralgia?
Find out which supplements for nerve pain, including fish oil and alpha-lipoic acid, are effective for sciatica, diabetic neuropathy, or postherpetic neuralgia.
CL Answer
What are the health benefits of manuka honey, and is it safe?
Manuka honey health benefits, how it differs from common, store-bought honey, safety, evidence for using manuka honey for wounds, sore throat and cough, constipation and more.
CL Answer
10 Supplements That May Boost Testosterone (And 13 That May Not)
Many supplements promise to increase testestorone, boost libido, and increase muscle size, but, as ConsumerLab explains, the actual effectiveness of supplements is limited, and some supplements may actually reduce testosterone levels.
CL Answer
What are the health benefits of bovine colostrum and is it safe?
Bovine colostrum is promoted for boosting immunity, preventing and treating diarrhea, and improving gut health, but does it really work? See the clinical evidence for bovine colostrum, including doses that have been used, as well as safety concerns, cost considerations, and the difference between regular bovine colostrum and hyperimmune bovine colostrum.
CL Answer
10 Supplements That May Help Reduce Nighttime Urination (And 5 That May Not)
Waking up more than once during the night to use the bathroom? Learn more about the 9 supplements that may help and 5 others that don't.
CL Answer
How Should You Take Care of Yourself After You’ve Had COVID-19?
Find out the best way to care for yourself when recovering from COVID-19, including how long you should quarantine, whether you should get vaccinated, when it is safe to undergo a surgery, and how to spot and, possibly, improve lingering symptoms.
CL Answer
Does red and near infrared light therapy reduce pain, improve skin or cognition, or have other benefits? Is it safe?
Red light and near infrared light therapy devices are promoted for numerous conditions, including acne, fibromyalgia, pain, cognitive function and other uses. Find out if these devices work and if they are safe.
CL Answer
Is drinking coffee good or bad for heart health?
Learn more about coffee and caffeine, its safety, if it's good for you, how much coffee is too much and its impact on your heart.
CL Answer
Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?
Find out which supplements help improve memory, brain function and cognition, including fish oil, some B vitamins, cocoa, and curcumin. ConsumerLab's answer explains the evidence for supplements promoted to help with brain function and cognition.
News Release
February 23, 2017
ConsumerLab.com Reveals Best and Worst B Vitamin Supplements and Why Current Labels Often Mislead
White Plains, New York, February 24, 2017 — B vitamins and complexes are popular supplements, but labels often mislead, says a new report from ConsumerLab.com which tested, reviewed, and compared 49 supplements from the U.S.
CL Answer
Do hair loss supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?
Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.
News Release
August 13, 2015
Feeling Stressed? ConsumerLab.com Reviews the Evidence for L-Theanine and Test Popular Products
White Plains, New York, August 21, 2015 — L-theanine is often promoted to reduce stress, and for conditions such as ADHD — but does it really work? ConsumerLab.com recently reviewed the evidence and purchased popular brands of L-theanine to test their quality.
Recalls & Warnings
October 29, 2019
Chinese Herbal Supplement May Raise PSA
Use of a Chinese herbal supplement appears to have significantly increased the PSA (prostate specific antigen) level in a man treated for prostate cancer, erroneously suggesting a recurrence of the cancer (Abel, J Am Osteopath Assoc 2019).
Recalls & Warnings
November 24, 2018
Dangerous Drug In Supplements for Pain and Anxiety
On November 20, 2018, the FDA announced it has issued warning letters to two companies for the illegal marketing of products labeled as dietary supplements that contain the opioid-like drug tianeptine.
Recalls & Warnings
June 02, 2018
FDA Warns Seller of Cough Suppressant & Grape Seed Supplements
On March 29, 2018, the FDA issued a warning letter to Yoder's Good Health Products following a facility inspection which found a number of the company's products, including Respiratory & Cough Formula and Life Drops to be adulterated because they were prepared, packed, or ...
Recalls & Warnings
May 22, 2018
FDA Warns Companies Selling "Sun Protection" Supplements
On May 18, 2018, the FDA issued warning letters to four companies selling supplements for sun protection because statements made on product labels, websites and in marketing materials were found to be drug claims, which are not permitted for dietary supplements.
News Release
January 06, 2015
Only 25% of Ashwagandha Supplements Pass ConsumerLab.com Review
White Plains, New York, January 6, 2015 —"It's very hard to find a good ashwagandha supplement," notes Tod Cooperman, M.D., President of ConsumerLab.com, the health product testing company which recently completed evaluations of ashwagandha herbal supplements.
Recalls & Warnings
November 02, 2009
FTC Charges Marketers with Baseless Weight-Loss Claims
On November 2, 2009 the U.S. Justice Department, at the Federal Trade Commission’s request, filed suit today in federal court in a case affecting consumers nationwide.
Recalls & Warnings
August 05, 2016
Seller of Fertilix Warned By FDA
On July 22, 2016, the FDA issued a warning letter to CellOxess LLC, following a review of the company's websites, social media pages and marketing literature which found statements made about Fertilix Preconceptual, Fertilix Low Dose and Fertilix Max to be drug claims.
Recalls & Warnings
December 07, 2012
Antioxidant Protandim Supplement Recalled Due To Risk of Metal Fragments
On December 5, 2012, LifeVantage Corporation issued a voluntary recall of dietary supplement Protandim, the Nrf2 Synergizer, due to the potential for contamination with small metal fragments. The recall includes Protandim products sold in the U.S. and Japan between July and November 2012.
Recalls & Warnings
November 18, 2011
FDA Warns Maker of Milk Thistle and L-Carnitine Supplements of Serious Violations
The U.S. FDA posted a Warning Letter to CJ Labs (Miami, Florida) dated November 1, 2011 regarding serious violations of Good Manufacting Practices in the production of its Milk Thistle and L-Carnitine supplements.
Recalls & Warnings
August 25, 2018
Thirty-Two Children's Homeopathic Products Recalled
On August 22, 2018, King Bio issued a recall of 32 homeopathic products for children because some have have tested positive for microbial contamination.
Recalls & Warnings
March 17, 2004
Marketers of “Focus Factor” and “V-Factor” Fined for Advertising Claims
On March 17 , 2004 the Federal Trade Commission (FTC) reported that the marketers of “Focus Factor,” a dietary supplement that purports to improve concentration, and “V-Factor,” a supplement that purports to enhance sexual performance, have agreed to settle charges that they made numerous ...
News Release
September 27, 2012
ConsumerLab.com Reveals How Much Caffeine is in Energy Drinks -- Also Finds Some Drinks and Dietary Supplements Don't Contain Claimed Amounts of B Vitamins
White Plains, New York — September 27, 2012 — Energy shots and drinks are promoted to keep you alert and energized, attributing their effects to special formulas often "packed with B vitamins and nutrients to make it last," as a commercial for 5-hour Energy proclaims.
Recalls & Warnings
January 07, 2002
Liver Toxicity with Kava
As announced in a December 19, 2001 letter to healthcare professionals, The Food and Drug Administration (FDA) is investigating whether the use of dietary supplements containing kava (also known as kava kava or Piper methysticum) is associated with liver toxicity.
Recalls & Warnings
February 22, 2012
"Japan Weight Loss Blue" Pills Dangerous According to FDA
On February 18, 2012, the U.S. Food and Drug Administration (FDA) advised consumers not to purchase or use “Japan Weight Loss Blue,” a product for weight loss sold on various websites, including www.vitaminbestbuy.com.
Recalls & Warnings
February 14, 2013
Maker of Antioxidant and Anti-Aging Supplements Warned For Manufacturing Violations
On January 10, 2013, the FDA issued a warning letter to dietary supplement manufacturer Consolidated Marketing Unlimited, Inc.
Recalls & Warnings
May 30, 2015
Seller of Supplements for Herpes, Prostate Cancer & More Warned for Drug Claims
On May 7, 2015, the FDA issued a warning letter to Strictly Health Corporation, following a review of the company's websites which found statements made about FENVIR, Prosta Pep and Tonalin brand CLA to be drug claims.
Recalls & Warnings
May 26, 2015
Skin Measurement Device Used to Select Nutritional Supplements Not Approved for This Use, FDA Warns
On May 8, 2015, the FDA issued a warning letter to ZYTO Technologies, Inc.
Recalls & Warnings
July 18, 2017
Seller of "Super Strength Prostate Formula," Acai Berry Supplements & More Warned for Drug Claims
On June 30, 2017, the FDA issued a warning letter to Nature's Health Company, LLC, following a facility inspection and review of the company's website, www.natureshealthcompany.
Recalls & Warnings
February 20, 2013
Cold, Flu and Stress Supplement Company Warned For Adulteration, Drug Claims And More
On October 5, 2012, the FDA issued a warning letter to dietary supplement manufacturer Wholistic Herbs, Inc. following a facility inspection which found the company's products, including At-Ease, Morning Calm, Aller-Ban, Stomach Flu, Kold & Koff, Kold Sore, and L.
Recalls & Warnings
January 03, 2004
FDA to Prohibit Sales of Dietary Supplements Containing Ephedra
On December 30, 2003, the U.S. Food and Drug Administration (FDA) issued a consumer alert of its forthcoming determination that dietary supplements containing ephedra present an unreasonable risk of illness or injury, and should not be consumed.
Recalls & Warnings
March 25, 2002
FDA Advises Consumers of Risk of Severe Liver Toxicity with Kava
On March 25, 2002 the U.S. Food and Drug Administration (FDA)issued a Consumer Advisory, as well as a letter to health care providers, advising of the potential risk of severe liver injury associated with the use of kava-containing dietary supplements.
Recalls & Warnings
March 03, 2006
FDA Requests Seizure of More Supplements Containing Ephedrine Alkaloids
On February 24, 2006, the U.S. Food and Drug Administration (FDA) announced that the U.S.
News Release
March 07, 2008
ConsumerLab.com finds most vitamin C supplements pass quality tests but one short on ingredient and some exceed tolerable levels
WHITE PLAINS, NEW YORK — MARCH 7, 2008 — ConsumerLab.com reported test results today for a wide variety of vitamin C supplements. Vitamin C is the top-selling single vitamin in the U.S., with sales of $863 million in 2006 according to Nutrition Business Journal.
News Release
March 14, 2005
ConsumerLab.com reports on vitamin C supplements — Test Results for 29 Products Reported Along with Information on Use
WHITE PLAINS, NY — MARCH 14, 2005 — ConsumerLab.com reported test results today for a wide variety of vitamin C supplements purchased at retail. Vitamin C is the top-selling single vitamin in the U.S., with sales of $770 million in 2003 according to Nutrition Business Journal.
News Release
August 28, 2003
Some problems persist with ginseng supplements but overall quality improves according to ConsumerLab.com — Test results published online today
WHITE PLAINS, NY — August 28, 2003 — In contrast to its testing three years ago in which nearly 60% of Asian and American Ginseng supplements were found to have significant problems, testing of recently purchased products by ConsumerLab.
Recalls & Warnings
October 06, 2004
False Claims Made by Marketer of Cortisol-related Weight-Loss Supplements According to FTC
On October 6, 2004, the Federal Trade Commission (FTC)charged marketers of two dietary supplements with claiming, falsely and without substantiation, that their products can cause weight loss and reduce the risk of, or prevent, serious health conditions.
Recalls & Warnings
April 11, 2008
Twelve Dietary Herbal Supplements Recalled -- Possible Health Risk Associated with Ephedra, Aristolochic Acid and Human Placenta
On April 10, 2008, the FDA posted a recall notice issued the same day from Herbal Science International, Inc. (AKA Jen-On Herbal Science International, Inc.).
