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Product Review
Rice Review (White, Brown, Black, Wild, and Combination)
Discover Arsenic Levels in Rice and Our Top Picks.
CL Answer
Does coffee have brain benefits?
People commonly drink coffee to increase alertness, counteract fatigue, and boost cognition, but does it really improve memory and cognitive function? Find out, and learn about risks linked with drinking too much coffee.
Product Review
Coconut Oil and Medium Chain Triglycerides (MCT) Oil Review — Semi-Solid and Liquid Oils & Supplements
Find the Best Coconut Oil and MCT Oil. See How These Oils Compare on Medium Chain Triglycerides (MCTs), Quality, and Value.
Product Review
Low-Dose Lithium Supplements Review
Choose the Best Low-Dose Lithium Supplement. CL Tests Reveal Which Low-Dose Lithium Supplements Offer the Best Quality and Value.
CL Answer
Is it safe to consume fish oil as a long-term food supplement?
Learn more about fish oil supplement safety including long-term use, side effects, and more.
CL Answer
What is the difference between the "Best By" date and the "Date of Manufacture" on a supplement label? How do I know how long my supplement will last before it "goes bad"?
To understand if your vitamins and supplements expire, learn more about the "Best By" and "Date of Manufacture" dates on labels.
CL Answer
I do moderate exercise for about an hour a few times a week. Which supplements might help me, and which should I consider avoiding?
Info on what supplements are best for work out & exercise regimens, including electrolytes, protein, creatine, and BCAAs.
CL Answer
Can zuPOO and its primary ingredient, cascara sagrada, cleanse the gut, improve digestion and help with weight management?
zuPOO is marketed for gut support and as a colon cleanser for weight management. Find out if research supports these claims and if ingredients in zuPOO are safe.
CL Answer
Is it safe to chew softgel supplements instead of swallowing them? Does this affect absorption of the ingredients?
Find out if it is safe to chew softgel supplements, instead of swallowing them, and if this affects absorption of the ingredients.
CL Answer
I've been using a lutein supplement with 40 mg of lutein and am concerned that this dose may be too high. Are there known harmful side-effects?
Learn more about lutein side effects, proper dosage and safety in vision supplements.
CL Answer
Is it safe to take CoQ10 while taking blood thinners like warfarin or Plavix (clopidogrel)?
Learn more about the possible counteractive effects of CoQ10 and blood thinners, including safety.
CL Answer
Energy Gels: What Are They Used For and Do They Contain Their Labeled Ingredients?
Energy gels are a convenient on-the-go carbohydrate source, but some products may not contain the amount of carbohydrates stated on the label.
Product Review
Electrolytes & Sports Drinks Review
See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes
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.
Product Review
Licorice and DGL Supplements, Candies, and Tea Review
What's In Your Licorice? Find Out and Avoid Problems.
Product Review
Glutathione Supplements Review
Learn How Glutathione Products Differ, Which Failed, and Our Top Picks
Product Review
Inactive Ingredients / Excipients in Supplements
Find Out Why Coloring Agents, Sweeteners, Fillers & Other Inactive Ingredients Are In Your Supplements and If They're Safe.
Clinical Update
Clinical Update
11/23/2021
Reduced "Long" COVID-19 Risk with Vaccination
Getting vaccinated before or even after having COVID-19 has been linked with reduced risk of "long" COVID.
CL Answer
I thought the B vitamins were all water soluble and did not build up in the body, so you would not build up toxic levels. Am I wrong?
Learn more about water-soluble B vitamins including niacin, B6, B12 and folic acid, and why taking too much of these vitamins can be toxic. See the symptoms of overdose and toxicity from B vitamins. ConsumerLab.com's answer explains.
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
I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug?
Find out which supplements should be avoided when taking blood thinners (anticoagulants) like warfarin (Coumadin), including vitamin K, St. John's wort, and curcumin.
CL Answer
What is the best way to take curcumin? Is it better to take it all at once or in divided doses?
Find out the best way to take curcumin and turmeric supplements to increase absorption and bioavailability, plus the best way to cook with turmeric spice. ConsumerLab.com's answer explains.
CL Answer
Should I take, or avoid, any supplements if I take omeprazole (Prilosec), esomeprazole (Nexium), or other proton pump inhibitors for heartburn?
Supplement interactions with proton pump inhibitor (PPI) drugs like omeprazole (Prilosec) and Nexium.
CL Answer
I'm over 50 and looking to take a vitamin B-12 supplement. Many contain a form of vitamin B-12 called cyanocobalamin, yet I read on the Internet that this form is toxic. Should I be concerned?
Looking to see if the cyanocobalamin form of vitamin B-12 is safe? Read research and safety information on ConsumerLab's report.
CL Answer
Which supplements are helpful to have when traveling? Any tips on how to best store supplements on trips?
Find out which vitamins & supplements can be helpful when traveling, including melatonin, ginger, and more, and find out how you can carry them with you.
CL Answer
What is the difference between forms of vitamin K2?
Learn about the different forms of vitamin K2 - MK-4 (synthetic) and MK-7 (natural, from natto).
Clinical Update
11/11/2021
Long COVID Symptoms Not Due to COVID?
A recent study suggests that "long COVID" symptoms reported by some people may not be due to COVID. Find out why this is of concern.
Clinical Update
3/17/2020
How Long Does Coronavirus Last On Surfaces?
We've added new information about how long the coronavirus might last on packaging, and how this varies greatly depending on the package material, in our answer to the question: Can I get the new coronavirus (2019-nCoV) from supplements from China?
Clinical Update
11/11/2022
Paxlovid May Reduce Risk of Long COVID
Taking Paxlovid after testing positive for COVID-19 reduced the risk of long-term symptoms. For details, see our CL Answer about COVID-19 treatments.
Clinical Update
2/15/2022
How Long Does Booster Protection Last?
Find out how long protection with a booster appears to last.
Mix and match boosting seems best to provide the greatest protection, studies show.
Clinical Update
3/18/2022
Blood Type & Long COVID
People with a particular blood type appear more likely to experience long COVID, according to a recent study. Get the details in our answer to the question: How Should You Take Care of Yourself After You've Had COVID-19?
Clinical Update
11/17/2025
A Supplement for Long COVID?
Did nicotinamide riboside (an NAD booster) improve symptoms like “brain fog” in people with long COVID? See the study results in our NAD Boosters Review, which includes our Top Picks for NAD, NADH, nicotinamide riboside, and NMN.
Clinical Update
1/02/2025
Fish Oil for Long COVID?
Does taking fish oil improve symptoms of long COVID such as shortness of breath, cough, fatigue, lack of taste, or loss of smell? Find out what a recent study showed in the COVID-19 section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.
Clinical Update
10/02/2024
Low-dose Lithium for Long COVID?
Did taking low-dose lithium improve symptoms of long COVID? Find out what a recent study showed in the What It Does section of our Low-Dose Lithium Review, which includes our Top Picks for low-dose lithium.
CL Answer
Risks of Too Many Vitamins & Supplements
Taking too many vitamin supplements -- or taking too much of a particular supplement -- can have short and long-term adverse effects.
CL Answer
Do Probiotics, Such as Those by Bioma and Pendulum, Boost GLP-1 to Help with Weight Loss?
Discover the differences between probiotics and GLP-1 agonists for blood sugar and weight management. Products discussed include Pendulum Glucose Control, Pendulum GLP-1 Probiotic, and Bioma Gut Health Probiotics.
CL Answer
I use beta-sitosterol for my prostate. Should it be taken with or without food?
How should you take the prostate supplement beta-sitosterol to maximize absorption? Learn more at ConsumerLab.com.
CL Answer
What are the side effects of magnesium supplements?
Info on magnesium supplement side effects, such as stomach upset, nausea and diarrhea. Learn about magnesium dosage, safety and drug interactions. ConsumerLab.com answer explains.
Product Review
Melatonin Supplements Review
Trouble Sleeping? See CL's Tests of Melatonin Supplements and Top Picks.
Product Review
Zinc Supplements, Lozenges, and Melts Review
Find the Best Zinc Supplements, Including Lozenges for Colds.
Product Review
Mangosteen Juice and Supplements Review Article
What Are the Benefits of Mangosteen Juice and Supplements? Find Out What Mangosteen Can and Cannot Do For Your Health.
Product Review
Hoodia (Hoodia gordonii) Supplements Review Article
Hoodia Supplements for Weight Loss. Will Hoodia help you lose weight? Make sure you know the facts.
Product Review
Maca Supplements Review
Choose the Best Maca Supplement. Make Sure Your Maca Supplement Isn't Contaminated With Lead.
CL Answer
Is ingesting colloidal silver helpful for any condition and is it safe to use?
Find out if there is evidence showing colloidal silver can help to treat infections, boost the immune system, help with arthritis and more, plus find out if colloidal silver can cause blue skin or other side effects.
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.
Clinical Update
1/25/2022
Timing Vaccines Around COVID Drugs
Learn how long you need to delay vaccination after receiving drug therapy for COVID-19, including antivirals (such as remdesivir and Paxlovid) and antibody treatments.
CL Answer
Are Pyruvate Supplements Helpful and Safe?
Pyruvate supplements have been promoted for weight loss, boosting athletic performance, and lowering cholesterol. Find out if they work, if they're safe, and how to choose a pyruvate supplement.
CL Answer
What are the health benefits of serrapeptase?
Serrapeptase is a proteolytic enzyme. Learn more about its health effects, including whether evidence supports its use for pain, inflammation, and heart health.
CL Answer
What is the difference between CoQ10 and ubiquinol?
Understand the difference between CoQ10 (ubiquinone) and the active form, ubiquinol, and how they are best absorbed. ConsumerLab explains.
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 collagen taken as a supplement help with arthritis? I'm seeing it in products for joint health.
Learn more about collagen supplements, including evidence from clinical studies on arthritis and muscle strength and safety.
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.
Product Review
Weight Loss Supplements Review (7-Keto DHEA, Forskolin and Stimulant Blend Supplements)
Choose the Best Weight Loss Supplement. Be Careful With Weight Loss Supplements — Few Pass Quality Testing and Safety Review.
CL Answer
How much magnesium do I need and how much magnesium from supplements is too much?
Find out how much magnesium you should be getting on a daily basis, signs of magnesium deficiency, and how much magnesium is too much, particularly from magnesium supplements and laxatives containing magnesium. Find out the side effects and potential adverse effects of too much magnesium.
CL Answer
Do any supplements reduce wrinkles, increase skin elasticity, or tighten the skin?
Learn about collagen, biotin, CoQ10, cocoa, soy isoflavones, phytoceramides, and other supplements for reducing wrinkles and improving aging skin.
CL Answer
Is Hershey's Special Dark better than other dark chocolate bars or cocoa powders?
Find out if Hershey's Special Dark Chocolate bar is better than other dark chocolate bars or cocoa powders, including flavanol content, contamination with lead or cadmium and other tests of quality. ConsumerLab.com's answer explains.
CL Answer
Have you heard of the probiotic, Keybiotics? Does it do what it claims, and is it worth the money they charge?
Whole Body Research Keybiotics probiotic information, including its ingredients and possible cheaper alternatives.
CL Answer
What is magnesium stearate, what is it made from, and is it dangerous?
Learn more about magnesium stearate and its safety, based on evidence from clinical studies.
CL Answer
Can fisetin, also called Cognisetin and Novusetin, really improve memory or slow aging?
Can fisetin (Cognisetin and Novusetin) improve memory or slow aging? Find out what clinical research shows and learn about safety and pricing of fisetin.
CL Answer
Does OsteoMD improve calcium absorption and increase bone density?
ConsumerLab reviews the evidence for OsteoMD by 1MD, a bone health supplement promoted to slow bone loss and reduce the risk of osteoporosis.
CL Answer
Does taking creatine affect blood or urine test results?
Find out if creatine can affect creatinine levels and kidney function and whether creatine affects creatine kinase activity, a measure of muscle injury.
CL Answer
Do "Mr. Happy Stack" supplements improve memory, cognition and mood, and are they safe?
Find out if Happy Stack supplements really work to enhance memory and cognition, plus safety and side effects. ConsumerLab.com's answer explains.
CL Answer
Dihydromyricetin (DHM) – Does It Help and Is it Safe?
Dihydromyricetin (DHM) is promoted for liver health, diabetes, lowering cholesterol, and as a hangover remedy. Find out if it works and whether it is safe.
CL Answer
Is Folic Acid the Same Thing as Folate?
There are important differences between folic acid and folate, including how well these forms of vitamin B-9 are absorbed, dosage, and how much is too much. Get the details, including what to look for on supplement labels, in our article about folic acid and folate.
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
Top 8 vitamins and nutrients for vegetarians and vegans
Find out which 8 supplements may be needed by vegetarians or vegans to meet all their daily nutrient requirements and learn ways to find supplements that do not contain ingredients objectionable to people following vegetarian or vegan diets.
CL Answer
Do any supplements, foods, or oils help reduce muscle pain, muscle cramps, or nighttime leg cramps?
Find out which supplements, and topical products such as magnesium creams, can help reduce muscle pain, leg cramps, and nighttime leg cramps, and which may worsen muscle cramps. Also, learn about vitamin and mineral deficiencies and common medications that can cause muscle cramps and nocturnal leg cramps.
Clinical Update
4/14/2020
Zinc Concern
Zinc is a popular supplement right now due to COVID-19, but be aware that taking large doses of zinc for a long period of time can suppress the immune system by causing or exacerbating copper deficiency. Certain people may be more at risk for this. Get the details in the Cautions and Concerns section of the Zinc Supplements and Lozenges Review.
Clinical Update
2/01/2020
Pomegranate for Memory?
Pomegranate juice and supplements have been promoted for improving cardiovascular health, controlling blood sugar, and inhibiting prostate cancer. Most recently pomegranate juice was tested in a year-long study for its effects on memory. Find out if it helped, and see if it works for other touted uses, in the What It Does section of the Pomegranate Juice and Supplements Review Article.
Clinical Update
10/21/2012
Vitamin D for Lupus
A recent small study found that vitamin D supplements helped people with lupus (systemic lupus erythematosus -- SLE), a long-term autoimmune disease. See the update to the Vitamin D Supplements Review which has details on who may benefit, dosage, and results of our product tests. More >>
Clinical Update
5/05/2013
Omega-6 for Eczema?
Supplements with the omega-6 fatty acid GLA from evening primrose oil or borage oil have long been promoted to treat eczema. However, a recent review of data from 27 studies casts doubt on this use. Get more information about this, and about omega-3 and -6 fatty acids, in the updated Black Currant, Borage, Evening Primrose, and Flaxeed Oil Supplements Review >>
Clinical Update
2/24/2013
Calcium Risk for Women
A long-term study found that women with high calcium intakes from their diets were 40% more likely to die during the study than women with moderate calcium intake. Worse, the risk of death was 157% higher for women with high dietary calcium intake who also took a calcium supplement. What should you do? Get the details in the recent update to the Calcium Supplements Review and read our latest recommendations on calcium intake in the What You Need to Know section.)
Clinical Update
1/08/2012
B-12 and Folic Acid for Memory
Small but significant improvements in short and long-term memory were found to occur in older people (aged 60 to 74) given modest daily amounts of vitamin B-12 and folic acid. But don't expect immediate results. Improvements were seen only after 2 years of supplementation. See the update in the B Vitamins Review for the dosage used, as well as our ratings of supplements with vitamin B-12 and folic acid.
Clinical Update
3/09/2011
Antacids and Magnesium -- Be Careful!
There is a new alert that long-term use (over a year) of proton pump inhibitors can cause low magnesium levels. Magnesium supplements can usually help. See the Magnesium Product Review for details including symptoms of magnesium deficiency and a list of affected products. More >>
Clinical Update
1/19/2014
Multivitamin Lowers Cataract Risk
A large, long-term study using a low-dose multivitamin found that it reduced the risk of developing cataract (a clouding of the lens of the eye) by 9% compared to placebo. Interestingly, the reduced risk of cataract was negated when a separate vitamin C supplement was also taken. For details about the study and dosage, as well as our tests and comparison of multivitamins, see the updated Multivitamin and Multimineral Supplements Review.
Clinical Update
10/10/2014
CoQ10 Benefit Takes Time
A large study found that a daily dose of CoQ10 reduced the chances of hospitalization or death by almost 50% in people with moderate to severe heart failure -- but only after being taken for an extended period of time. Find out how much CoQ10 was taken and for how long, and get our quality ratings and comparisons of CoQ10 supplements, in the updated CoQ10 and Ubiquinol Supplements Review >>
Clinical Update
3/03/2015
Caution Urged with Melatonin
In light of increasing use of melatonin in children, an expert is cautioning that its long-term safety has not been established and it should be used carefully. For more about this -- as well as other concerns with melatonin, its efficacy, and our reviews of melatonin supplements, see the Melatonin Supplements Review >>
Clinical Update
5/02/2015
Too Much Vitamin D
A U.S. study showed a recent 26-fold increase in the percentage of people with excessive blood levels of vitamin D, driven by increased supplement use. Although acute toxic effects were rare, potential long-term risks exist with these high levels. See the details in Vitamin D Supplements Review >>
Clinical Update
10/03/2015
Melatonin Safety in Women
A year-long, placebo-controlled study in postmenopausal women found that moderate doses of melatonin resulted in no increase in daytime drowsiness or adverse events. Get more details and about this and other melatonin studies (and see tests of products) in the Melatonin Supplements Review >>
Clinical Update
4/23/2016
Curcumin and Cognition
Curcumin (from turmeric) has been shown to provide anti-inflammatory effects, helpful in osteoarthritis and gastrointestinal conditions, and even an anti-depressant effect. A recent long-term study evaluated its effects on cognition and memory in older people. See the results in the "What It Does" section of the Turmeric/Curcumin Supplements Review (which includes our tests of popular products) >>
Clinical Update
6/04/2016
Osteoarthritis and Vitamin D
A large, long-term study among older people with knee osteoarthritis found no benefit from taking vitamin D. More details about this -- and about vitamin D for many other conditions -- are found in the "What It Does" section in our Vitamin D Supplements Review >>
Clinical Update
7/06/2016
Lower Risk of Death With Green Tea
A long-term study of men in China found that those who regularly drank green tea — particularly larger amounts — were less likely to die during the study and had lower risks of dying from cardiovascular disease or cancer, compared to non-green tea drinkers. Get the details in the "What It Does" section of the Green Tea Review >>
Clinical Update
7/16/2016
Magnesium and Heart Disease
People with lower blood levels of magnesium were 36% more likely to die from heart disease than those with moderate levels according to a new, long-term study. For more details, see the "What It Does" section of the Magnesium Supplements Review >>
Clinical Update
8/30/2016
Resveratrol for Blood Sugar?
Despite preliminary studies which found resveratrol to help lower blood sugar in people with type 2 diabetes, a larger long-term study found no benefit. Find out more in the "What It Does" section of the Resveratrol Supplements Review >>
Clinical Update
3/29/2017
Vitamin E/Selenium & Alzheimer's
A long-term study among men in the U.S. found that giving high doses of vitamin E and/or selenium did not significantly affect their risk of developing dementia. The study was part of a larger study which found that these supplements increased the risk of prostate cancer, type 2 diabetes, hair loss, and dermatitis. For details, see the "Alzheimer's disease/dementia" section of the Selenium Supplements Review >>
Clinical Update
5/30/2017
Heart Risk Lower with Chocolate
Eating chocolate is associated with a reduced risk of developing atrial fibrillation, according to a large, long-term study. Atrial fibrillation is associated with higher risk of stroke, heart failure and other serious problems. Details about this and other benefits of chocolate are found in the "What It Does" section of the Chocolate and Cocoa Powders Review, which includes our findings for the flavanol content and contamination levels of popular products.
Clinical Update
11/08/2017
Dark Chocolate for Memory
Short-term studies suggest that large doses of cocoa flavanols improve certain aspects of memory and cognition. A new study suggests that long-term habitual intake of dark chocolate, which is rich in flavanols, can also help. For more information, see the "What It Does" section of the Dark Chocolate and Cocoa Review >> [Also see our Top Picks for dark chocolate bars in the Review.]
Clinical Update
9/09/2015
Vitamin C: The Exercise Replacement?
A small clinical study recently found that taking vitamin C had a positive effect on blood vessels similar to a daily walk. The study focused on overweight and obese individuals, in whom blood vessel tone is compromised. Long-term effects were not studied. Get details about the study (including dose) and other pros and cons of vitamin C in the Vitamin C Supplements Review >>
Clinical Update
6/23/2018
Probiotics for Bones
Can taking a daily probiotic help reduce bone loss? Find out what a year-long study showed in the Bone density and fractures section of the Probiotic Supplements Review. (Also see our Top Picks among probiotic supplements.)
Clinical Update
9/18/2018
Curcumin Effect on Liver
Long-term use of curcumin may negatively affect the liver in a small percentage of people, according to a new report. Get the details in the Concerns and Cautions section of the Turmeric and Curcumin Supplements Review. (Also see our Top Picks for turmeric and curcumin.)
Clinical Update
12/14/2017
Danger from Too Much Vitamin B6
A women who was consuming large amounts of an energy drink as well as a B-vitamin complex developed symptoms of vitamin B6 (pyridoxine) toxicity (which may not be reversible), according to a recent report. Get the details in the "B6" section of B Vitamin Supplements Review >>
CL has long warned that energy drinks and shots often contain large amounts of B6 and other B vitamins.
Clinical Update
11/11/2019
Platelet Concern With High-dose Niacin
Long-term use of high-dose niacin may lower platelet counts. Learn more in the Niacin section of the B Vitamin Supplements Review.
Clinical Update
7/18/2020
Vitamin D and Risk of Death
Increasing vitamin D blood levels was associated with a lower risk of death over time in a recently published long-term study, but only up to a certain level. Find out at what vitamin D blood level the benefit ended in the What It Does section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D and be aware of how much is too much vitamin D.
Clinical Update
3/20/2019
Hot Tea & Cancer
Drinking very hot tea increases the risk of developing esophageal cancer. How long should you wait after brewing to drink tea? Find out what recent studies are showing in the What It Does section of the Green Tea Review. Also see other tips for the best way to prepare brewable green tea, and our Top Picks among green tea products.
Clinical Update
8/13/2019
Folic Acid and Colon Cancer
Several studies have evaluated whether folate from food and/or folic acid from supplements affect cancer risk. Find out what a recent report suggests about long-term, high-dose folic acid supplementation in the Folate section of the B Vitamin Supplements Review. Also see our Top Picks for folic acid and other B vitamin supplements.
Clinical Update
3/16/2019
Colloidal Silver Concern
Long-term use of colloidal silver may have contributed to the development of bone marrow cancer, according to a new report. We've added details about this to our answer to the question: Is ingesting colloidal silver helpful for any condition and is it safe to use?
Clinical Update
7/02/2019
Best Way to Take CBD
If you use CBD, it's important that you take it in a way that maximizes its absorption. To learn more, see the What to Consider When Using section of the CBD Oils and Hemp Extracts Review, where you'll also see results of a new study showing that how you take CBD may dramatically affect how long it remains in your body. Also see our Top Picks among products.
Clinical Update
8/21/2021
Mediterranean vs. Low-Fat Diet for Arteries
A long-term study in people with coronary heart disease compared the effects of a Mediterranean diet rich in olive oil with a low-fat diet. Find out which diet decreased atherosclerosis (plaque build-up in arteries) in the Cardiovascular Disease section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
Clinical Update
9/07/2021
COVID Symptoms in Breakthrough Cases
Fully vaccinated people who get COVID are much less likely to experience symptoms, as well as long-COVID, than unvaccinated people with COVID to according to a recent study. Get the details.
Clinical Update
7/22/2024
Near Infrared Light for Cognition?
Find out if near infrared (NIR) light therapy improved cognitive function in healthy people or those with dementia in our article about red and NIR light therapy.
Also, learn whether red light therapy is beneficial for actinic keratosis (scaly patches on the skin caused by long-term sun exposure).
Clinical Update
4/19/2024
NMN and Kidney Injury
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.
Clinical Update
4/26/2024
Supplements to Avoid Before Surgery?
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.
Clinical Update
7/18/2023
Vitamin D and Doxycycline
Should I take vitamin D when on doxycycline (used to treat Lyme disease)? Read why you may want to supplement with vitamin D if you’re on a long course of treatment with a medication that causes photosensitivity, such as doxycycline.
Clinical Update
8/08/2023
Sweeteners & Obesity
Is long-term use of aspartame, saccharin or sucralose linked with increased body fat, weight gain, and risk of obesity? See what a recent study showed in our updated article about sugar substitutes.
Clinical Update
2/01/2022
Olive Oil Lowers Risk of Death
Regular consumption of olive oil was associated with reduced risk of death from heart disease, cancer, and Alzheimer’s disease in a large, long-term study – but only if replacing certain other foods. Get the details in the What It Does section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.
Clinical Update
10/28/2022
Herb for Boosting Testosterone?
A CL Member asked if Eurycoma longifolia (also called Long Jack or Tongkat Ali) alone or in combination with Fadogia agrestis could help boost testosterone. Find out what research suggests, including safety concerns, in our article about supplements for boosting testosterone.
Clinical Update
4/25/2023
Copper Deficiency from Zinc
Taking high-dose zinc long-term can cause copper deficiency, resulting in a range of adverse effects. Because testing for copper deficiency is not routine, it may go undiagnosed, as shown in a recent study. Find out how to avoid copper deficiency when taking zinc in the Concerns and Cautions section of our Zinc Supplements and Lozenges Review.
Clinical Update
8/09/2022
How Long Are You Contagious?
If you test positive on a rapid antigen test after a 5-day isolation, how likely are you to still be contagious? Find out in our CL Answer about COVID-19 testing.
Clinical Update
6/14/2022
Duration of EVUSHELD Protection
How long does the medicine EVUSHELD protect against COVID-19? Find out what recent data showed in our article about medicines to prevent and treat COVID-19.
Clinical Update
7/08/2022
Supplement for Post-COVID Fatigue?
Did supplementing with oxaloacetate reduce symptoms in people with post-COVID fatigue in a recent study? Find out in the Strategies for managing long COVID section of our article about How to Take Care of Yourself After You’ve Had COVID-19.
Clinical Update
11/01/2024
Arsenic in Water Linked to Heart Disease
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.
Clinical Update
12/09/2024
Valerian for Sleep?
How long does it take for valerian to increase sleep? See what one study found in the Sleep section of our Valerian Supplements Review, which includes our Top Picks for valerian.
Clinical Update
12/23/2024
Turmeric & Vision
A long-term study found that people using turmeric (curcumin) supplements were far less likely to develop age-related macular degeneration than non-users. For details, see our Turmeric Supplements Review, which includes our Top Picks among turmeric and curcumin supplements.
Also see our Vision Supplements Review, which includes our Top Pick among AREDS2 vision formula supplements.
Clinical Update
1/09/2025
Low Magnesium Due to PPI Use
Be aware that long-term use of proton-pump inhibitors (PPIs, such as Prilosec, Nexium, and Prevacid) can cause magnesium deficiency. Magnesium supplementation is sometimes not enough to reverse this. Learn more in our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Clinical Update
7/31/2025
How long is permethrin-treated clothing effective at repelling insects?
Find out how many times clothing sprayed or impregnated with permethrin can be washed before it loses effectiveness, and how to extend this. Get the details in our article about insect repellents.
Clinical Update
11/03/2025
Melatonin: Potential Risks of Long-Term Use
Taking melatonin for a year or more was linked to increased risk of heart failure and higher overall mortality, according to a new study. For details, see the Concerns and Cautions section of our Melatonin Supplements Review, which includes our Top Picks for melatonin.
Clinical Update
1/12/2026
Unusual Side Effect of Kratom
Long-term use of kratom has been linked with an unusual change in the skin. Get the details in our article about kratom.
Clinical Update
4/21/2026
Best Calcium When Taking a PPI
If you take an acid-blocking PPI (proton pump inhibitor) such as Prilosec or Prevacid, be aware that it can affect the absorption of calcium and other minerals. In some cases, long-term use has been linked with increased fracture risk. Find out which form of calcium may be best absorbed when taking a PPI in our Calcium Supplements Review, which includes our Top Picks for calcium.
CL Answer
8 Supplements That May Help Treat Peptic Ulcers – And Some to Avoid
Peptic ulcers caused by H. pylori infection are typically treated with antibiotics, but certain supplements may also help. Find out which 8 supplements might be beneficial - and which should be avoided.
Product Review
Shilajit Supplements Review (Resins and Extracts)
We Discovered Major Differences Among Shilajit Supplements
CL Answer
Is it true that NAC can help clear nasal passages?
Find out if N-Acetyl Cysteine (NAC) can help with post nasal drip & general sinus congestion and about supplements that may reduce cold symptoms.
CL Answer
I have been having dizziness for the past few months and am wondering if it could be a side effect of supplements I take. Which supplements cause dizziness?
Find out which supplements that may cause dizziness, vertigo, or imbalance, including garlic, melatonin, saw palmetto, and red yeast rice.
CL Answer
Does yacon syrup decrease appetite or help with weight loss? How do I find a quality brand?
Can yacon syrup can help with weight loss? Learn more, including clinical evidence, side effects, and dosage.
Clinical Update
8/25/2013
Antioxidants: Too Much of a Good Thing?
CL Answer
Is kratom too dangerous to use?
Find out if kratom is safe/legal to use, including potential adverse effects, such as agitation, rapid heartbeat, nausea, drowsiness, seizures, and possible drug interactions.
CL Answer
Resistant Starch: Health Benefits & Safety
Resistant starches have been promoted for improving bowel function, blood sugar control, reducing risk factors of metabolic syndrome, and for weight loss. Find out if they work.
Product Review
Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)
Do Creatine and BCAAs Really Improve Strength and Recovery?
Product Review
Aloe Juices, Gels, and Supplements Review
How Much Aloe is Really in Aloe Products? Find Out and See Our Top Picks.
CL Answer
Are L-carnosine supplements helpful and safe?
Learn about the potential health benefits of L-carnosine, as well as possible safety concerns, drug interactions and cost.
CL Answer
Do any supplements or foods benefit people with Crohn's disease? Are there any supplements that should be avoided?
Find out the most common vitamin and mineral deficiencies in people with Crohn's disease, including iron, B6, B12, vitamin D, zinc and others, plus evidence for N-acetyl-glucosamine (NAG), fish oil, and curcumin.
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.
CL Answer
Do sea moss and carrageenan have health benefits? Are there risks?
Sea moss is promoted for thyroid health, boosting immunity, improving gut health, and other uses. Find out if it works and learn about possible side effects of sea moss and its constituent, carrageenan.
CL Answer
What are the benefits of grape seed extract?
Learn about the health benefits of grape seed extract, and find out it improves venous insufficiency, leg swelling, swelling after surgery, or can help to lower blood pressure.
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.
CL Answer
Do vitamins, minerals or other supplements lose effectiveness with exposure to high temperatures?
Are vitamins and supplements susceptible to heat? Find out if mail ordering during the summer is safe.
CL Answer
What are phytoceramides? Do phytoceramide supplements really work to improve aging skin?
Phytoceramide supplement information, including what they are, what they claim to do, and if they have anti-aging effects.
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 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.
CL Answer
Do plasmalogen supplements improve cognitive function and memory?
Plasmalogen supplements claim to improve cognitive function, support memory, and reduce brain fog. Find out if they work.
CL Answer
Supplements For Back Pain: What Helps, What's Hype
Some supplements may provide modest benefit for back pain, while others don't seem to work or haven't been evaluated for this use. Find out if supplements like collagen, devil's claw, PEA, pregnenolone, white willow bark, and others help.
CL Answer
Which supplements are helpful for age-related macular degeneration (AMD)?
Find out which vitamins & supplements are helpful for macular degeneration (AMD), such as lutein, zeaxanthin, and others used in the AREDS studies.
CL Answer
Do Vital 3 collagen drops reduce joint pain?
Learn more about Vital 3 collagen drops withundenatured type II collagen, and if they can help joints move better and feel better.
CL Answer
Which foods are a good source of B vitamins?
Find out which foods are a good source of B vitamins (like folate and B-12) and when you should take Vitamin B supplements.
CL Answer
Are gummy vitamins better or worse than pills?
Learn more about gummy supplements, including those for multivitamins, vitamins C and D, calcium, and B vitamins.
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.
CL Answer
Which supplements can help treat anemia? Do any supplements cause a low red blood cell count?
Find out which vitamin and nutrient supplements can help prevent and treat anemia in people who are nutrient deficient and learn which supplements may cause low blood cell counts, especially when used in excess.
CL Answer
What is hesperidin, what is it used for and is it safe?
Learn about hesperidin, including whether its beneficial for heart health, problems with circulation, stroke, cognitive function, depression, cancer and other conditions, and find out if it is safe.
CL Answer
Supplements to Take or Avoid When Using a GLP-1 Drug
Certain supplements may be helpful when taking a GLP-1 agonist, but others should be used with caution or avoided. It may also be important to monitor levels of certain vitamins and minerals. Get the details.
CL Answer
What are the best bug sprays to prevent tick and mosquito bites? Is the insecticide permethrin safe to use?
Find out how permethrin sprays differ and which can be used on sheets and sleeping bags versus clothing
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
Which vitamins and minerals should be taken together or separately?
Find out the best way to take vitamins and minerals and which vitamins and minerals should be taken together or separately for proper absorption. ConsumerLab answer explains the best way to take vitamins and minerals.
CL Answer
Is fish oil safe? Is it contaminated with mercury and PCBs?
Fish oil safety, including information on contamination with mercury and PCBs.
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.
CL Answer
What is the ingredient zeolite I see in Natural Cellular Defense and other detox supplements? Does it help in any way?
Learn what zeolite is and why it is found in many detox supplements like Waiora's Natural Cellular Defense, Get Healthy Again Zeolite, and Ultra Liquid Zeolite.
CL Answer
I'm trying to pick a good multivitamin for my children and husband, and for myself. Any suggestions based on your research?
Find out how to pick the best multivitamin for you and your family, based on diet, price, and effectiveness.
CL Answer
If I buy NAC as a loose powder in a large bag, as opposed to in tablet or capsule form, will it spoil? I've heard it can spoil or degrade into a harmful by-product.
Learn more about the different forms of N-Acetyl-Cysteine (NAC), including whether or not powder will spoil faster than tablets.
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.
CL Answer
Does tea tree oil work for getting rid of athlete's foot?
Learn more about tea tree oil and its effects on foot fungus (known as athlete’s foot, tinea pedis, or “ringworm” due to the lesion that can occur) and how it can be as effective as some, but not all, over-the-counter antifungal treatments. ConsumerLab explains.
CL Answer
Is hyaluronic acid helpful for osteoarthritis?
Hyaluronic acid supplement information including joint pain, osteoarthritis, clinical evidence, dosage and more.
CL Answer
What is graviola? Can it really help fight cancer?
Learn more about graviola, if it can really help fight cancer, and its safety.
CL Answer
Does AZO Bladder Control really work for overactive bladder?
AZO Bladder Control information, including results from clinical studies on bladder control, dosage, and safety.
CL Answer
Is it okay to buy supplements as tablets? I've heard that tablets may go through our system without dissolving. Is there any way to know whether tablets will properly dissolve?
Find out if supplements taken as tablets dissolve well in the body, including our test results on disintegration.
CL Answer
Can magnesium supplements reduce heart palpitations or PVCs?
Having low blood levels of magnesium has been associated with abnormal heart rhythms known as PVCs (premature ventricular complexes). Find out if taking magnesium supplements can help.
CL Answer
Signal Relief Patches – Do They Really Relieve Pain and Are They Safe?
Signal Relief Patches are marketed as providing "drug-free pain relief for as little as 30¢ per day." Find out if they work and are worth the cost.
Product Review
Astaxanthin Supplements Review
See Which Astaxanthin Products Passed or Failed CL's Tests
Product Review
Coconut Waters Review
Best Coconut Water? See Our Tests and Comparisons of Popular Brands Looking at Sugar, Electrolytes, Taste and Price.
Product Review
Garlic Supplements Review
Find the Best Garlic Supplements. CL Tests Reveal Big Differences in Garlic Strength -- Some Have Little to No Garlic!.
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.
Product Review
Nutrition Bars Review (Protein, Energy, and Nut & Fruit Bars)
Our Tests Showed What's Hiding in Protein Bars
Recalls & Warnings
October 16, 2025
Ben’s Original Ready Rice Recalled
On October 10, 2025, Ben's Original issued a recall of certain batches of Ben's Original Ready Rice Long Grain White Rice, Ready Rice Whole Grain Brown Rice, and Ready Rice Long Grain & Wild Rice because they may contain small stones, which could potentially injure the mouth ...
Product Review
GABA Supplements Review
Does GABA Work As a Supplement?
Product Review
Cholesterol-Lowering Supplements Review (Sterols/Stanols and Policosanol)
Find the Best Cholesterol-Lowering Supplement. See Which Plant Sterol and Policosanol Supplements Passed Our Tests and Are Our Top Picks.
Product Review
Vitamin A Supplements Review, Including Beta-Carotene and Cod Liver Oil
Find the Best Vitamin A Supplement. Best Quality Vitamin A Supplements Identified, Including Cod Liver Oil.
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
What is the best sunscreen based on safety and efficacy?
We’ve boiled down the latest research about mineral and chemical sunscreens, including product tests, to help you choose the best sunscreen (which will depend on whether you expect to be in or out of the water). We also list popular sunscreens that have, or have not, been found to contain cancer-causing compounds (benzene and benzophenone).
CL Answer
What are trace minerals and do I need them?
Trace minerals include boron, chromium, copper, iodine, iron, manganese, molybdenum, nickel, zinc, and others. Find out what they do, how much of each trace mineral you should be getting, and who's most likely to be deficient in these minerals.
CL Answer
Which deodorants and antiperspirants are contaminated with benzene and which are not?
Benzene, a carcinogen, has been detected in over 40 spray deodorants, antiperspirants, and body sprays. Tests were conducted on brands including Axe, Bath & Body Works, Brut, Degree, Dove, Gold Bond, Right Guard, Secret, Speed Stick, Suave, Old Spice, Victoria's Secret and others. Find out which products contained benzene, and how much they contained.
CL Answer
Do any supplements help for varicose veins or chronic venous insufficiency?
Find out which supplements help for varicose veins and chronic venous insufficiency, including citrus bioflavonoids and grape seed extract.
CL Answer
Do any supplements help prevent or improve cataracts?
Find out which supplements may help with cataracts, including selenium and vitamins A, B1, B3, C, and E.
CL Answer
I've heard that soaking dried beans for 24 hours reduces the phytate level, allowing for greater access to nutrients. Is this true?
Does soaking dried beans in water help reduce phytate levels to help gain greater access to nutrients?
Product Review
Vitamin C Supplements Review
Find the Best Vitamin C Supplements
Product Review
Ashwagandha Supplements Review
Find the Best Ashwagandha Supplement. Only 38% of Ashwagandha Products Pass Tests.
Product Review
CoQ10 and Ubiquinol Supplements Review
Find the Best CoQ10 and Ubiquinol Supplements and Learn How They Differ
Product Review
Extra Virgin Olive Oil Review
Many Extra Virgin Olive Oils Don't Seem to Make the Grade
CL Answer
Are light boxes effective for preventing and treating seasonal affective disorder (SAD), also known as "winter depression," or circadian rhythm disorders such as jet lag? Which light boxes are best?
Learn about the benefits and safety of light boxes (including who is most likely to benefit), how to use these devices, which commercially available products appear to meet the technical requirements, and who should not use light boxes.
CL Answer
What are the health benefits of andrographis? Can it treat colds, help with joint pain, or other conditions, and is it safe?
Learn about the health benefits of andrographis, whether it can help relieve cold symptoms, reduce pain and stiffness of osteoarthritis or rheumatoid arthritis, decrease symptoms of ulcerative colitis, or slow the growth of cancer. See the clinical evidence for the branded andrographis extract ParActin. Plus, learn about dosage, side effects and drug interactions with andrographis.
CL Answer
I read that turmeric may be a GI irritant. I have GI problems and wonder if I should avoid turmeric and curcumin?
Find out if turmeric/curcumin supplements can cause gastrointestinal irritability.
CL Answer
Which supplements have been shown to be helpful for autism, and which have not?
Find out which supplements may help reduce symptoms of autism, including multivitamins, probiotics, and melatonin.
CL Answer
I have type 2 diabetes. Should I be concerned about ingredients like maltodextrin and maltitol that are found in some protein bars and drinks?
Learn more about maltitol and maltodextrin and their effects on blood glucose levels for people with type 2 diabetes.
CL Answer
Do diamine oxidase (DAO) supplements for histamine intolerance really work?
DAO supplement info for histamine intolerance, including diamine oxidase safety, evidence from clinical studies, and dosage.
CL Answer
Does Prelief Help with Heartburn or Bladder Pain Caused By Acidic Foods?
Learn about Prelief, a product promoted to reduce acidity from foods and drinks that may cause bladder pain, frequent urination, heartburn, or indigestion. Discover what Prelief claims to do, the clinical evidence supporting its use, and important safety considerations.
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
Supplements for Attention-Deficit/Hyperactivity Disorder (ADHD): Are Any Helpful?
Dietary supplements are often explored as alternative options or add-on interventions for people with ADHD. Learn which, if any, have shown possible benefit and which don’t seem to help or may interfere with ADHD medication.
CL Answer
LifeWave Patches: Do They Work?
LifeWave patches are promoted for numerous health benefits, but does research support these claims? Find out, and learn about possible safety concerns, cost, and controversies related to LifeWave patches.
CL Answer
Is UpWellness Golden Revive + for Joint Support Worth It?
UpWellness Golden Revive + claims to offer relief for inflammation, muscle tension, and nerve pain. Find out if research supports these claims and if it's worth its price.
CL Answer
Capsimax for Weight Control: Does It Work & Is It Safe?
Capsimax, a cayenne pepper extract, is included in a number of supplements for weight loss. Find out if it works and if it's safe.
CL Answer
I am 70 a year male in relatively good health. I plan on walking the Camino in France (500 miles). I am looking for a multivitamin that would best supply me with my needs during this walk/hike. What would be the best product or combination of products to use?
Find out if older adults who walk or hike should take a multivitamin, vitamin C, vitamin D, or other supplements, like electrolytes, when hiking. Plus, see our advice for choosing a good sunscreen.
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).
CL Answer
Should you take olive oil as a supplement?
Although extra virgin olive oil has many possible health benefits, such as reduced risk of heart disease and improved blood sugar control, these and other benefits have been demonstrated when olive oil replaces for saturated fats in the diet, not when taken as a supplement, as we explain.
CL Answer
What are the health benefits of luteolin, and is it safe?
Find out if luteolin, a compound found in many fruits and vegetables, is beneficial for cancer, heart health, skin aging, age-related cognitive decline, and other conditions, and learn if it's safe.
CL Answer
What are the health benefits of grapefruit seed extract (GSE)? Is it safe?
Learn more about grapefruit seed extract health benefits, including its possible antifungal and antibacterial effects and its safety.
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
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
What is EpiCor? Does it really "boost" the immune system and prevent colds?
EpiCor supplement info, including evidence from clinical studies on immune function and cold/flu prevention, safety, and price.
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
Can white kidney bean extract lower blood sugar or help me lose weight?
Does white kidney bean extract help promote weight loss? Find out more including evidence from clinical studies and dosage.
CL Answer
Can fluoride in toothpaste, mouth rinses or drinking water cause attention-deficit/hyperactivity disorder (ADHD) or other neurodevelopmental disorders in children?
Find out if community water fluoridation increases the risk of attention-deficit/hyperactivity disorder (ADHD) or causes lower IQ in children, and learn what the American Dental Association recommends when using fluoride-containing toothpaste and mouth rinses in children.
CL Answer
Do essential amino acid (EAA) supplements help build muscle better than dietary protein or protein supplements?
Comparison of essential amino acids vs dietary protein and protein supplements for building muscle.
CL Answer
How good are sardines? Are they healthy and safe? What did CL's tests find?
Find out amounts of omega-3s (DHA and EPA), protein, and vitamin D in sardines, as well as contaminants mercury and arsenic based on ConsumerLab's tests.
CL Answer
I have IBS and don't want to take medication if I can help it. I've heard that peppermint works for IBS, but is there good research to support this?
Information about using peppermint oil for irritable bowel syndrome (IBS), including clinical evidence, dosage, safety and more.
CL Answer
When taking a statin drug like Lipitor or Crestor, are there supplements I should avoid or take?
Learn about the interactions between certain supplements and atorvastatin (Lipitor), rosuvastatin (Crestor), and other cholesterol-lowering statins.
CL Answer
Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Information about heart health supplements & vitamins that help with cholesterol, including sterol esters, CoQ10, and vitamin D, and which may be bad for the heart, like calcium.
CL Answer
Which supplements and foods can help lower or control blood sugar?
Find out which supplements can help lower or control blood sugar. Supplements including turmeric/curcumin, fiber, cinnamon, and ginseng are believed to help lower blood sugar.
CL Answer
Which supplements, foods or diet and lifestyle changes help relieve acid reflux (heartburn), and which worsen it?
Find out which supplements and foods can help relieve acid reflux, and which can make it worse.
CL Answer
5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin
Get 5 tips for finding soap or body wash that won't cause skin irritation. See which soaps we rate best, ingredients to avoid, and phrases on labels that can mislead.
CL Answer
7 Tips to Avoid Getting a Pill Stuck in Your Throat
Some pills can be difficult to swallow and can even become lodged in the throat or cause damage to the esophagus. Learn seven practical tips to help avoid getting pills stuck in the throat.
CL Answer
Sugar Substitutes: Pros, Cons, and Best Choices
Learn about the pros and cons of using sugar substitutes and artificial sweeteners in place of table sugar. Sweeteners discussed include stevia, monk fruit, and other high-intensity sweeteners; xylitol, erythritol, allulose and other low-calorie sweeteners; and agave syrup, black sugar, coconut sugar, honey, molasses and other sugar alternatives.
Product Review
Canned Tuna, Salmon, Sardines & Mackerel Review
Find Fish With the Least Mercury & Arsenic and Most Omega-3s
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.
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
PFAS (Per- and Polyfluoroalkyl Substances): How can I avoid PFAS in dental floss, food, water, and other products?
Some brands of dental floss may contain potentially toxic chemicals known as PFAS (polyfluoroalkyl substances). Get the details and learn which floss and pick products are our Top Picks.
Product Review
CBD Oils, Softgels, Gummies, Creams & Salves Review
See How Much CBD and THC We Found in Products.
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.
Product Review
Black Seed Oil Review
Find Out Which Black Seed Oil Supplements Passed or Failed Our Tests. See Our Top Picks.
Product Review
Milk Thistle Supplements Review
3,700% Difference Found Among Milk Thistle Supplements. Find the Best Milk Thistle Based on Our Tests and See Our Top Picks.
Product Review
L-Arginine Supplements Review
Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.
Product Review
Sexual Enhancer Supplements Review (with Yohimbe, Horny Goat Weed, Arginine)
Choose the Best Sexual Enhancer Supplement. Only 30% of Selected Sexual Enhancement Supplements Pass Quality Tests.
Product Review
Iron Supplements Review (Iron Pills, Liquids and Chews)
See Which Iron Supplements Are CL's Top Picks for Different Needs
CL Answer
Are Balance of Nature products good dietary supplements?
Do Balance of Nature supplements "Fruits" and "Veggies" supplements really provide the daily recommended servings of fruits and vegetables, and are they worth the cost? Find out.
CL Answer
What are the health benefits of palmitoylethanolamide (PEA), and is it safe?
Palmitoylethanolamide (PEA) is commonly promoted for its anti-inflammatory and pain-relieving effects. Find out if it works.
CL Answer
How concerned should I be about glyphosate in foods and supplements?
Find out if you should be concerned about glyphosate in foods and supplements. ConsumerLab.com's answer explains.
Product Review
NAC (N-Acetyl Cysteine) Supplements Review
Choose the Best NAC Supplement and Save Money
Product Review
Lion's Mane and Chaga Supplements Review
Read Labels Carefully -- Many Can Mislead
Product Review
Psyllium Fiber Supplements Review
Find the Best Psyllium Fiber Supplement and Avoid Lead.
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
Holy Basil Supplements Review
Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.
Product Review
L-Lysine Supplements Review
Read L-Lysine Labels Carefully. Some Can Fool You.
Product Review
Vitamin D Supplements Review (Including Calcium, Magnesium, Vitamin K, and Boron)
Find the Best Vitamin D Supplement and Avoid Problems
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
Is topical menthol, such as Biofreeze, safe and effective for pain relief?
Menthol is commonly used in topical creams and gels for pain relief. Find out if it works and if it's safe.
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
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
Do any supplements help with restless legs syndrome?
Find out whether supplements or vitamins like iron, magnesium, vitamin E and others can help for restless leg syndrome (RLS). ConsumerLab.com's answer explains.
CL Answer
What is inositol hexaphosphate (IP6) and myo-inositol? Are they helpful in treating cancer or other conditions?
Inositol hexaphosphate (IP6): Find out if IP6 (also known as phytic acid) can prevent or treat cancer. Clinical evidence, dosage, safety and how IP6 differs from myo-inositol. Consumerlab.com's answer explains.
CL Answer
Which supplements and foods help with gout and which may worsen it?
Find out about the effects on uric acid levels and gout of fish and fish oil, coffee, beer, animal meat, milk proteins, vegetable proteins, fructose, lemon juice, tart cherry juice, vitamin A, vitamin C, and niacin
CL Answer
Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins?
Learn more about the benefits of getting vitamins from food versus supplements, natural versus synthetic vitamins, and more.
CL Answer
Which supplements are best for seasonal allergies?
Find out which supplements are best for allergies and can help reduce seasonal allergy symptoms, including bromelain, curcumin, vitamin D, and CLA.
Product Review
Dark Chocolates, Cocoa Powders and Supplements Review
Many Dark Chocolates and Cocoa Powders Fail Safety Tests
CL Answer
Is there a danger in taking lecithin or phosphatidylcholine? I heard that they may increase the risk of heart attacks.
Lecithin, phosphatidylcholine and choline - Learn more about the potential link between them and cardiovascular disease.
CL Answer
What is UC-II and does it help joints?
What is UC-II (undenatured type 2 collagen - InterHealth Nutraceuticals) and do clinical studies show that it works for joint health?
CL Answer
Do probiotics need to be refrigerated?
Refrigerating certain probiotic pills and other probiotic supplements is important. Get tips on how to store probiotics properly.
CL Answer
What supplements should I stop taking before surgery?
Info on which supplements to avoid before surgery due to increased risk of bleeding or interference with anesthesia.
CL Answer
Is sublingual vitamin B-12, which is placed under the tongue and allowed to dissolve, really better than the pill form?
Learn the difference between sublingual vitamin B-12, vitamin B-12 pills and more through information including clinical evidence.
CL Answer
Which supplements help with erectile dysfunction?
Supplements for erectile dysfunction. Find out which supplements can help with ED, including ginseng, L-arginine, and maca.
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.
CL Answer
Which supplements help reduce the risk of colorectal cancer?
Find out which supplements may reduce the risk of colorectal cancer, including folate, fiber, selenium, and vitamin D.
CL Answer
How can I find out where a vitamin or supplement is made and where its ingredients come from, such as China or the USA?
Learn more about the manufacturing, distribution, and ingredients of a supplement, including FDA regulations.
CL Answer
I've tried a number of fish oil supplements, all of which make me nauseous. What is the best non-fish alternative? I am primarily interested in getting EPA.
Learn how to reduce fish oil side effects such as nausea and upset stomach.
CL Answer
What are the health benefits of coconut oil and medium chain triglycerides, such as those used in Bulletproof Coffee?
Learn the health benefits of coconut oil and medium chain triglycerides (MCTs), including evidence from Bulletproof Coffee, clinical studies on obesity, skin, and Alzheimer's disease.
CL Answer
What is monolaurin? Can it really prevent colds, cold sores, or other infections?
Lauricidin (monolaurin) information for preventing colds, immune system function, and safety.
CL Answer
What are the side effects of red yeast rice?
Find out which side effects can be caused by red yeast rice supplements that are taken to lower cholesterol levels. ConsumerLab.com's answer explains.
CL Answer
Can prenatal vitamins have too much folic acid? Mine has 800 mcg, but isn't that more than what's recommended? Is this dangerous to me or my baby?
Is it possible for prenatal vitamins to have too much folic acid? Find out the correct dosage so that it is not dangerous to babies.
CL Answer
Are cranberry supplements helpful for men? Can they help with symptoms of an enlarged prostate, prostatitis, or urinary tract infections?
Learn more about how cranberry pills, cranberries, cranberry juice and supplements can help prevent urinary tract infections.
CL Answer
Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?
Information about lemon juice, lemonade, orange juice, cranberry juice and other juices for increasing urinary citrate and reducing the risk of kidney stones.
CL Answer
Does Neuriva improve memory or cognitive function?
Find out about Neuriva, its ingredients, and the evidence for or against it for memory and cognitive function.
CL Answer
Does Provitalize work for weight loss and is it safe?
Find out if taking Provitalize, a probiotic supplement that also contains turmeric extract, moringa leaf extract, curry leaf extract and piperine (BioPerine), relieves joint pain, decreases abdominal fat, or helps with weight loss.
CL Answer
Does AHCC or active hexose correlated compound have anticancer or antiviral benefits, and is it safe?
Learn about AHCC and active hexose correlated compound, including whether these compounds are beneficial for liver, pancreatic, or prostate cancer, chemotherapy-related side effects, or the flu. Also, find out if AHCC or active hexose correlated compound are safe.
CL Answer
Can any supplements improve or worsen symptoms of fibromyalgia?
Find out if any supplements may help improve fibromyalgia symptoms, learn which supplements do not seem beneficial, and find out if any supplements worsen symptoms.
CL Answer
Dandelion Tea & Supplements: Health Benefits and Safety
Find out about the potential health benefits of dandelion tea and supplements, as well as safety, side effects, and potential drug interactions.
CL Answer
Do detox foot pads or ionic foot baths remove heavy metals or other toxins from the body?
Detox foot pads and ionic foot baths are promoted for removing heavy metals and other toxins from the body. Find out if there is evidence to support these claims.
Product Review
Multivitamin and Multimineral Supplements Review
32% Failed our Tests. Choose Your Multivitamin Carefully.
CL Answer
Which is the best mask to prevent COVID-19 and how do cloth, disposable, N95, and KN95 masks compare? How can I stop glasses from fogging?
See our Top Picks for masks. Learn how to make COVID-19 masks from materials at home that can be almost as effective as surgical mask and N-95 masks.
News Release
September 12, 2025
ConsumerLab Tests Identify Best Milk Thistle Supplements
White Plains, NY, September 12, 2025 – Some milk thistle supplements may contain far less silymarin than a consumer might expect from labels, according to recent ConsumerLab tests.
News Release
December 20, 2024
Best Zinc Supplements and Lozenges for Colds, According to ConsumerLab
White Plains, NY, December 20, 2024 — Zinc is important for a healthy immune system and the right zinc lozenge can help reduce cold symptoms, but taking too much zinc causes adverse effects.
News Release
February 29, 2024
Lead Found In Psyllium Fiber Supplements
White Plains, NY, February 29, 2024 — Psyllium is an effective laxative that may also have heart health benefits, but ConsumerLab’s recent tests found lead contamination in every psyllium fiber supplement it purchased and tested.
News Release
July 26, 2023
Best Collagen Supplements for Skin and Joints, According to ConsumerLab Tests
White Plains, New York, July 26, 2023 — Collagen supplementation may modestly reduce wrinkles and the appearance of cellulite, and moderately decrease joint and tendon pain and improve flexibility in people with osteoarthritis.
Product Review
Turmeric and Curcumin Supplements and Spices Review
See Our Top Picks Among Turmeric Products
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
Here’s What You Should Look For In Toothpaste and Mouthwash, and Our Top Picks
Learn about ingredients you want in your toothpaste, mouthwash and other dental products and which ingredients you may want to avoid.
News Release
March 28, 2023
Expanded Flaxseed Testing by ConsumerLab Reveals More Cadmium Contamination – Several Quality Products Also Identified
White Plains, New York, March 28, 2023 — Due to concerning levels of cadmium ConsumerLab discovered in its tests of flaxseed products in January 2023, ConsumerLab recently purchased and tested seven additional whole and ground flaxseed products.
Recalls & Warnings
March 20, 2026
Salmonella Outbreak Update: 97 Cases Linked With Moringa Leaf Supplements
On March 17, 2026, the FDA and CDC announced that a joint investigation of a multi-state Salmonella outbreak has concluded.
Recalls & Warnings
April 02, 2026
Kian Pee Wan Capsules Recalled
On March 30, 2026, Aphreseller, a seller on eBay, announced a nationwide recall of all lots of Kian Pee Wan capsules after FDA testing found that the product contained undeclared drug ingredients, dexamethasone and cyproheptadine, which are not permitted in dietary supplements.
Product Review
Vision Supplements Review (with Lutein, Zeaxanthin & AREDS2 Formulas)
Find the Best Vision Supplement Based Our Tests
Product Review
Manuka Honey Review
Find the Best Manuka Honey Based on Quality, Taste, and Value. See our Top Picks.
Product Review
Choline and Lecithin Supplements Review (Including Phosphatidylcholine, CDP-Choline, and Alpha-GPC)
Choose the Best Choline Supplement. Find Out How Much Choline Popular Supplements Really Provide.
News Release
January 12, 2023
High Levels of Cadmium Found In Whole and Ground Flaxseed In ConsumerLab Tests
White Plains, New York, January 12, 2023 — Recent ConsumerLab tests revealed concerning levels of cadmium, a toxic heavy metal, in several popular flaxseed products which, otherwise, provided the listed amounts of healthy fats, fiber, and protein without microbial contamination.
CL Answer
Are fruit and vegetable “washes” or devices more effective than water for cleaning produce and removing pesticides? Are they safe?
Fruit and veggie washes, vinegar, and baking soda, as well as devices that use electrolysis, ozone water, or ultrasonic cleaning, are often promoted for removing dirt, bacteria and pesticides from produce. Find out if any work better than rinsing with water and if they are safe.
CL Answer
Which supplements and foods reduce or increase the risk of kidney stones?
Find out which supplements, foods and beverages may increase or decrease the risk of kidney stones, including information about potassium, calcium, choline, turmeric and curcumin, vitamin C, as well as foods and beverages such as green tea, lemon juice, orange juice, cranberry juice, chocolate and almonds.
CL Answer
Can supplements, natural eye drops, or lifestyle modifications improve symptoms of dry eye?
Can supplements such as fish oil, flaxseed oil or curcumin (from turmeric) help treat dry eyes? Find out, including formulas and doses that have shown benefit. Also, learn if drinking more water or using eye drops containing castor oil, N-acetylcarnosine or aloe can help with dry eye.
CL Answer
Which supplements help with arthritis?
Learn more about supplements for joint health, including products such as Wobenzym and Zyflamend and ingredients such as collagen, curcumin, devil's claw, glucosamine and chondroitin, hyaluronic acid, magnesium, omega-3 fatty acids, palmitoylethanolamide (PEA), SAMe, and others.
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.
Product Review
Fruits, Veggies, and Other Greens Supplements Review (Including Spirulina and Chlorella)
Avoid Lead in Greens, Problems with Pills, and Don't Give Up Eating Whole Foods.
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
Which foods and supplements contain lead, cadmium, or arsenic?
Discover which foods and dietary supplements contain lead and other metals, the limits, who’s testing, and how to stay safe.
CL Answer
Do any supplements help with fatty liver disease? Are some diets better 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
What is acrylamide? Is it true that coffee and cocoa contain this toxin?
Find out what acrylamide is, how much is found in coffee and cocoa, and how you can minimize your intake of acrylamide.
Recalls & Warnings
June 27, 2024
“Authentic” Rose Oil Often Is Not
Damask rose essential oil (Rosa × damascene) and products claiming to contain this oil, or “authentic rose oil” may often be adulterated or contain less expensive oils instead, according to a recent bulletin from the American Botanical Association (ABC).
News Release
February 10, 2022
Best Iron Supplements for Different Needs? ConsumerLab Selects Its Top Picks
White Plains, New York, February 10, 2022 — With so many different forms and doses of iron available from supplements, it can be difficult for consumers to know which best suits their needs.
News Release
February 12, 2021
Don't Be Surprised by New Labels on Many Vitamins
White Plains, New York, February 12, 2021 — It took almost four years, but more accurate labels on vitamin and mineral supplements are finally here and consumers should not be surprised to see changes, says Tod Cooperman, M.D., president and founder of ConsumerLab.
News Release
November 24, 2020
Best Zinc for Colds, Immunity, and More. ConsumerLab Selects Top Picks Among Zinc Liquids, Pills and Lozenges
White Plains, New York, November 24, 2020 — The right zinc can shorten a cold and many people are deficient in zinc. So which zinc supplements and lozenges provide the right dose and form of zinc, the best quality, and at a reasonable price?
CL Answer
What is C15:0 fatty acid (found in fatty15), and does it have health benefits?
C15:0 fatty acid in fatty15 is promoted for “healthier hair & skin, balanced metabolism, and deeper sleep,” as well as “slowing the aging process.” Find out if it works.
CL Answer
Can taking too much vitamin B-6 be dangerous?
Find out if multivitamins contain excessive amounts of B-6, how much B-6 is too much, and symptoms of toxicity and overdose.
CL Answer
Supplements That May Be Needed When Following a Gluten-Free Diet
Find out if supplements such as folate, vitamin B-12, niacin, thiamin, iron, vitamin D, and/or fiber are needed when following a gluten-free diet. Also learn how to find gluten-free supplements on ConsumerLab.com.
CL Answer
Does methylene blue increase energy, slow aging, or improve memory?
Methylene blue is promoted for increasing energy, slowing aging, and improving memory. Find out if there is evidence for this, plus safety and side effects.
CL Answer
Dimethyl sulfoxide (DMSO): Health Effects & Safety Concerns
Dimethyl sulfoxide (DMSO) is a colorless liquid promoted for osteoarthritis, interstitial cystitis, tennis elbow, rotator cuff tendonitis, wound healing, and many other conditions. Find out if it works and if it's safe.
CL Answer
Magnesium L-Threonate (Magtein): Health Effects & Safety
Magnesium L-threonate (Magtein) is promoted for boosting memory and cognition, improving mood, supporting sleep, reducing stress and improving symptoms of attention-deficit/hyperactivity disorder (ADHD). Find out if it works and if it's safe.
CL Answer
Are David Beckham’s IM8 Supplements Worth Taking?
IM8 markets two main products that claim to help you "feel amazing today," and "stay young tomorrow." Find out if these products work and if we think they're worth the cost.
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
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
Which oils can help lower my cholesterol and risk of heart attack? How are coconut oil, olive oil, and fish oil for example?
Find out which fats and oils, such as coconut oil and fish oil, lower cholesterol and lower the risk of cardiovascular disease.
CL Answer
Do brain games and apps really work and improve memory?
Find out if brain training games & apps, like Lumosity & BrainHQ, really work to train the mind and improve memory. ConsumerLab.com's answer explains.
CL Answer
Best Supplements to Prevent Age-Related Muscle Loss
Discover the top supplements to prevent age-related muscle loss after 60. Learn how protein, fish oil, vitamin D, and more can help maintain muscle strength and combat sarcopenia.
CL Answer
Do any supplements help prevent or reduce eye floaters?
Find out eye floaters (vitreous floaters) be treated with supplements like vitamin C, lutein, ginkgo, milk thistle, collagen or hyaluronic acid, or with products such as VitreousHealth.
CL Answer
Is there a risk of liver toxicity with certain supplements?
Find out if there is risk of liver damage from supplements such as green tea, niacin, red yeast rice and vitamin A.
CL Answer
What is Perque Bone Guard Forté? It is safe and effective for bone health?
Find out about the ingredients in Perque Bone Guard Forté, including which ingredients may be beneficial for osteoporosis and bone health and which may be a safety concern.
CL Answer
Can any supplements be used to reduce inflammation in people sensitive to NSAIDs such as ibuprofen, high-dose aspirin, or naproxen?
Find out if supplements such as turmeric, fish oil, MSM (methylsulfonylmethane), SAMe (S-adenosyl-methionine), boswellia, ginger, white willow bark or arnica may, or may not, be helpful to people sensitive to NSAIDs.
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.
Recalls & Warnings
October 02, 2023
Dangerous Ingredients Found in Ten Arthritis and Pain Supplements
On September 29, 2023, the FDA warned consumers that the following arthritis and pain management products contain undeclared drugs such as diclofenac, methocarbamol (a muscle relaxant), and dexamethasone (a corticosteroid), and/or other potentially harmful ingredients.
News Release
March 12, 2020
ConsumerLab Tests Reveal Big Differences Among Elderberry Supplements
White Plains, New York, March 12, 2020 — Elderberry extracts have long been promoted for fighting colds and flu, and, more recently, as a natural remedy for coronavirus (COVID-19).
News Release
June 25, 2019
ConsumerLab Tests Reveal Best B Vitamin Supplements -- 19% of B Vitamin Supplements Fail CL's Tests of Quality
White Plains, New York, June 25, 2019 — B vitamins and complexes are among the most popular supplements sold in the U.S. because B vitamins are essential for a wide range of functions in the body.
News Release
February 24, 2019
CBD and Collagen Rise in Popularity, as Probiotics and Coconut Oil Dip in Latest ConsumerLab Survey of Supplement Users
White Plains, New York, February 24, 2019 — A recent survey of 10,931 people who use dietary supplements shows that CBD oil (+6.3 percentage points), collagen (+3.6 pts), and bone broth (+2.
News Release
October 19, 2017
ConsumerLab.com Reveals Best Zinc Lozenges and Supplements for Shortening Colds and Correcting Deficiency
White Plains, New York, October 19, 2017 — In the U.S., mild zinc deficiency is fairly common. Zinc supplements can help to correct a deficiency, slow the progression of age-related macular degeneration, and have other benefits. Taken as a lozenge, zinc can shorten the duration of a cold.
News Release
June 21, 2017
Which Magnesium Is Best? ConsumerLab.com Tests Popular Brands and Reveals Its Top Pick
White Plains, New York, June 21, 2017 — Magnesium supplements are among the most popular supplements, but do you need to take one and, if so, which is best? To find out, ConsumerLab.com reviewed the clinical evidence, and purchased and tested popular magnesium supplements sold in the U.S.
News Release
May 26, 2017
ConsumerLab.com Tests Reveal the Best Calcium Supplements
White Plains, New York, May 26, 2017 — Most people know that calcium is important for building and maintaining strong bones, but with so many different forms, dosages and ingredient combinations available on the market, choosing a calcium supplement can be difficult. To help, ConsumerLab.
News Release
May 17, 2017
Best Vitamin D? ConsumerLab.com Tests Popular Vitamin D Supplements and Reveals Its Top Picks
White Plains, New York, May 17, 2017 — Vitamin D is currently the most popular dietary supplement among people who regularly use supplements according to a recent survey by ConsumerLab.com.
News Release
March 15, 2017
ConsumerLab.com Reveals Best and Worst Vitamin C Supplements -- 20% Fail ConsumerLab.com Tests of Quality
White Plains, New York, March 15, 2017 — Many people take large doses of vitamin C believing it will improve their health, prevent colds or reduce the risk of disease — but will it really? And when choosing a vitamin C supplement, can consumers be sure it contains what it claims? To ...
News Release
December 10, 2014
ConsumerLab.com Identifies Best Zinc Products for Colds, Eyes, and Zinc Deficiency -- Popular Zinc Supplements and Lozenges Tested and Compared
White Plains, New York, December 10, 2014 — "Zinc supplements have been shown to shorten colds and reduce the progression of advanced macular degeneration, but not all products provide the dosage proven effective, as well as pass criteria for supplement quality," says Tod Cooperman, M.D.
News Release
January 29, 2014
You May Be Getting More Vitamin C Than You Think from Some Supplements, Cautions ConsumerLab.com -- 27% of Vitamin C Supplements Don't Meet Label Claims in Recent Tests --
White Plains, New York, January 29, 2014 — It's cold and flu season, which means many people are reaching for vitamin C, as it may modestly reduce cold symptoms (although it won't prevent a cold).
News Release
January 17, 2012
Do African mango supplements help with weight loss? ConsumerLab.com investigates the evidence
White Plains, New York — January 17, 2012 — African mango supplements are touted to help shed pounds, but do they really work? "Long-term weight loss with African mango has not been proven," said says Tod Cooperman, M.D., President of ConsumerLab.
News Release
December 20, 2011
Choose zinc supplements carefully -- ConsumerLab.com finds only some have dosage proven to shorten colds, reduce eye disease
White Plains, New York — December 20, 2011 — Can zinc supplements shorten colds and reduce the progression of advanced macular degeneration? "Yes, but not all supplements provide a dosage that has been proven effective." says Tod Cooperman, M.D., President of ConsumerLab.com.
News Release
October 13, 2011
30% of SAM-e supplements selected for review fail to pass ConsumerLab.com testing -- Cost of SAM-e found to vary 5-fold
White Plains, New York, October 13, 2011 — Dietary supplements with SAMe (S-adenosyl-methionine) are used to treat osteoarthritis as well as depression, but only 7 out of ten SAM-e supplements recently selected for testing by ConsumerLab.com met all quality criteria.
News Release
August 31, 2011
ConsumerLab.com analyzes supplements for sexual dysfunction -- Only three out of ten products selected for testing pass
WHITE PLAINS, NEW YORK — August 31, 2011 — Only three out of ten supplements selected for testing that are for sexual enhancement passed ConsumerLab.com's latest investigation.
News Release
October 26, 2010
ConsumerLab.com reports deficiencies in some B-complex supplements and more caffeine than expected in "shot-sized" B vitamin "energy" drinks
White Plains, New York — October 26, 2010 — Tests of B vitamin supplements, including B-complexes and shot-sized energy drinks, revealed problems with the quality of 4 out of 18 products selected for review by independent testing organization ConsumerLab.com.
News Release
August 25, 2009
ConsumerLab.com tests quality of acai berry supplements and beverages -- No contamination found but health benefits remain unproven. Caution urged with laxative formulas and billing schemes.
White Plains, New York — Tuesday, August 25, 2009 — Acai berries have antioxidant properties and are a staple of the traditional Brazilian diet. In recent years, supplements and drinks made from acai have become popular in the U.S.
News Release
March 31, 2009
ConsumerLab.com Warns of Problems with Multivitamins and Vitamin Water -- Defects Found in Over 30% of Supplements Selected for Testing; Several Popular Children's Multis Exceed Tolerable Upper Intake Levels
WHITE PLAINS, NEW YORK — MARCH 31, 2009 — Over 30% of multivitamins recently selected for testing by ConsumerLab.com were found to contain significantly more or less ingredient than claimed or were contaminated with lead.
CL Answer
I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements or foods I should avoid, or be taking, due to this drug?
Is taking certain supplements and hypothyroidism medications bad? Learn which supplements can interact with thyroid hormone medications like levothyroxine (Synthroid), thyroid hormone levels, and laboratory tests.
CL Answer
Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?
Find out if natural remedies & supplements for coronavirus such as zinc, vitamin C, garlic, or elderberry help to prevent or treat COVID-19.
Recalls & Warnings
May 28, 2024
Fiji Water Recalled
On March 3, 2024, Natural Waters of Viti Limited issued a recall of over 78,000 cases of Fiji Natural Artesian Water 500 mL (24 pack) after firm testing found the presence of manganese, as well as bacteria.
CL Answer
Where to Safely Buy Real Vitamins and Supplements Online, Not Fakes or Counterfeits
ConsumerLab explains how to avoid counterfeit vitamins and supplements when shopping online on Amazon, Walmart.com, and other sites. Learn to identify authorized sites and sellers and avoid fake supplements. Use the brand-by-brand guide to protect yourself from risk.
CL Answer
All About Thyroid Supplements & Desiccated Thyroid Extract (Armour Thyroid)
Learn about supplement ingredients such as iodine, selenium, zinc, acetyl-l-carnitine, ashwagandha and guggul used for thyroid conditions and find out if they are beneficial. Also learn why ingredients such as alpha-lipoic acid, soy, resveratrol, quercetin may impair thyroid function.
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
Which is the best pulse oximeter for home use?
Best pulse oximeter for home use (COVID-19, asthma and COPD). Differences between home use and FDA-approved medical pulse oximeters.
CL Answer
Is it safe to drink coffee regularly? Does drinking coffee increase or decrease the risk of cancer?
Learn more about coffee, its safety, if it's good for you, and if it impacts your risk of cancer.
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
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.
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
Do any supplements or foods help prevent sunburn or skin damage from sun exposure? Can any increase your risk of sun-related skin damage?
Find out which supplements may help protect from sunburn and sun-related skin damage, including beta-carotene, vitamins A and C, and cocoa.
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
ConsumerLab’s Review of ION* Gut Support
ConsumerLab's Review of ION Gut Support (formerly Restore), the liquid humic extract supplement derived from soil. Learn about the evidence for ION Gut Support for on digestion and gut health, reducing inflammation, and other uses, dosage, cost, and safety.
CL Answer
Which supplements and foods help relieve constipation and which can cause constipation?
Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.
News Release
December 09, 2008
Tests of zinc supplements by ConsumerLab.com show only some provide dosage proven to shorten colds, reduce eye disease. Lead contamination found in one product.
WHITE PLAINS, NEW YORK — DECEMBER 9, 2008 — Zinc supplements can shorten colds and reduce the progression of advanced macular degeneration, among other uses. But a new report by ConsumerLab.
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
October 20, 2006
ConsumerLab.com report on CoQ10 supplements finds quality high but large range in suggested dosage
WHITE PLAINS, NEW YORK — OCTOBER 20, 2006 — New test results from ConsumerLab.com for CoQ10 supplements show that all of the products selected contained amounts of ingredient consistent with their labels.
News Release
November 15, 2005
Testing by ConsumerLab.com identifies many problems with popular supplements for weight loss, slimming, and blood sugar control
Westchester, NY — November 15, 2005 — In a series of reports released today, ConsumerLab.com revealed test results for supplements used for weight loss, slimming, and blood sugar control. Among the twenty-three products that ConsumerLab.
Recalls & Warnings
September 14, 2023
FDA Warns CVS, Walgreens, Similasan & Others for Eye Drop Violations
On September 11, 2023, the FDA issued Warning Letters to the following eight sellers of homeopathic and other types of eye drops regarding the products noted in italics due to a variety of violations of FDA regulations, most notably that they were marked with claims suggesting that they could cure, ...
Recalls & Warnings
May 08, 2024
APG SEVEN Warned for Promoting Products for Cancer, Depression, Arthritis, & More
On April 18, 2024, the FDA issued a Warning Letter to APG SEVEN, INC following a review of the company’s product labels, website, and social media, which found statements about the company’s BioMoringa, BioDiabetin, Maca Plus, BioProstate, Immune Support, HongoTrap, Honbacterol, ...
Recalls & Warnings
November 16, 2023
Toxic Levels of Lead Found in Cinnamon Applesauce
WanaBana, Schnucks, and Weis apple cinnamon fruit puree pouches have been recalled after being linked, as of December 5, 2023, to 64 reports of illness, including four children with potential lead toxicity.
Recalls & Warnings
April 27, 2022
Prescription Drugs Found in Arthritis, Muscle Pain, and Osteoporosis Supplements
On April 20th, 2022, the FDA warned consumers not to use the following ”Artri“ or ”Ortiga” products promoted to treat arthritis, muscle pain, osteoporosis and bone cancer because they have been found to contain undeclared drugs that can have serious adverse ...
Recalls & Warnings
April 23, 2021
FDA Warns 5 Sellers of Unapproved COVID-19 Tests
Between March 18 and April 6, 2021, the FDA issued warning letters to five companies for selling unapproved, adulterated, and misbranded tests for coronavirus (COVID-19).
CL Answer
Which air purifiers are best for reducing microbial and smoke particles from room air?
Find out if portable air cleaners can remove the virus that causes COVID-19 infection from the air and learn which type air cleaners work best.
News Release
June 15, 2005
Two magnesium supplements fail testing due to lead contamination. Nineteen others pass. Report now available.
WHITE PLAINS, NY — JUNE 15, 2005 — ConsumerLab.com has released its latest report on the quality of magnesium supplements sold in the U.S. In addition to being an essential mineral, magnesium may help prevent migraine headaches, menstrual pain, PMS, and leg cramps during pregnancy.
Recalls & Warnings
March 04, 2021
Federal Court Bars Confidence USA from Selling Supplements
On March 4, 2021, the FDA announced a permanent injunction has been entered, barring dietary supplement manufacturer Confidence USA Inc. and two of its executives from producing or selling products until they become compliant with current good manufacturing practices (cGMPs).
Recalls & Warnings
October 02, 2020
Tonic Therapeutic Herb Shop & Elixir Bar Warned for COVID-19 Claims
On September 29, 2020, the FDA issued a warning letter to Tonic Therapeutic Herb Shop & Elixir Bar for selling various herbal products, including Tonic Therapeutic Herb Shop & Elixir Bar, with unsupported claims that they can treat coronavirus (COVID-19).
Recalls & Warnings
June 08, 2021
FDA Warns Seller of "CoronaBox" Containing Vitamin D, Probiotics & More for Unsupported Claims
On May 24, 2021, the FDA issued a warning letter to Everything Health LLC following a review of the company's website by the FDA and Federal Trade Commission (FTC) which found the company promoted its CoronaBox (which contains cordyceps, vitamins, and K2, magnesium, ginger, probiotics ...
News Release
July 16, 2002
ConsumerLab.com finds lead contamination remains a problem for certain mineral supplements — Lead found in iron, magnesium and, most recently, potassium pills
WHITE PLAINS, NY — July 16, 2002 — ConsumerLab.com announced today that its testing has shown that approximately 5% to 10 % of certain mineral supplements are contaminated with lead. The findings are based on ConsumerLab.
News Release
March 27, 2001
ConsumerLab.com expands testing of health products; success of dietary supplement evaluations leads company into broader nutrition field, beginning with popular nutrition bars
WHITE PLAINS, NY — March 27, 2001 — Having established its presence as the leading independent evaluator of the quality of dietary supplements sold in the U.S, ConsumerLab.com announced today the expansion of its work to include foods and food ingredients.
Recalls & Warnings
December 29, 2020
FDA Warns Five Sellers of CBD for Claims of Treating Arthritis, Alzheimer's and More
On December 22, 2020, the FDA issued warning letters to five sellers of CBD following reviews of the companies' websites, which found statements made about the companies' products to be drug claims.
News Release
February 14, 2001
Problems found with multivitamins and multiminerals by ConsumerLab.com
WHITE PLAINS, NY — February 14, 2001 — ConsumerLab.com announced today that only 14 of 27 products evaluated in its Multivitamin and Multimineral Product Review achieved full "CL Approved Quality" status.
Recalls & Warnings
April 14, 2020
Herbs of Kedem Warned for Making Coronavirus Claims
On April 10, 2020, the FDA issued a warning letter to Herbs of Kedem for selling products with unsupported claims that they can treat coronavirus (COVID-19).
Recalls & Warnings
January 04, 2020
Hormonal Balance Supplement Tied to Liver Failure
An otherwise healthy 23-year old woman in Texas is reported to have recently developed liver failure (requiring a liver transplant) after taking the supplement Balance (from Alani Nu) for four months.
Recalls & Warnings
December 10, 2002
Company Ordered to Cease Deceptive Marketing of Weight Loss Product
A U.S. District Court in Texas has ordered Mark Nutritionals, maker of Body Solutions Evening Weight Loss Formula, to stop making certain claims with regard to the product. The order is in response to a complaint by the Federal Trade Commission (FTC) accusing the company of false advertising.
Recalls & Warnings
September 10, 2012
Maker of Concussion Recovery Supplement Warned For Making Drug Claims
On August 28, 2012, the FDA issued a warning letter to Trinity Sports Group, Inc. after a review of the company's websites found statements about Neuro Impact Concussion Response Formula constituted drug claims not permitted on supplements.
Recalls & Warnings
June 16, 2009
FDA Warns of Loss of Sense of Smell with Zicam Nasal Gel/Nasal Swab
On June 16, 2009, the U.S. FDA warned consumers and healthcare professionals to discontinue use of three Zicam Nasal Gel/Nasal Swab products sold over-the-counter as cold remedies because they are associated with the loss of sense of smell that may be long-lasting or permanent.
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.).
Recalls & Warnings
February 14, 2014
Weight Loss Supplement Containing Drug Recalled
On February 4, 2014, MyNicKnaxs, LLC. issued a recall of weight loss supplement Reduce Weight Fruta Planta because it was found to contain phenolphthalein.
Recalls & Warnings
February 10, 2018
Warning to D-Limonene, Vitamin C Seller
On January 31, 2018 the FDA issued a warning letter to Long Life Unlimited, LLC following a review of the company's website which found promotional statements and testimonials made about products including Balance 600, D-Limonene, Rapha Remedy, Rapha Remedy w/ p73 Wild Oregano, Vitamin C, ...
Recalls & Warnings
May 20, 2017
Muscle Enhancement Supplement Containing Steroid-Like Substances Recalled
On May 19, 2017, Dynamic Technical Formulations LLC issued a recall of all lots its muscle enhancement supplement Tri-Ton because it was found to contain anabolic steroid-like substances (andarine and ostarine) which are not permitted in dietary supplements.
Recalls & Warnings
May 08, 2017
Muscle Enhancement Supplement Recalled
On May 5, 2017, Genetic Edge Compounds issued a recall of all lots its muscle enhancement supplement GEC Laxoplex because FDA analysis found it to contain anabolic steroids and steroid like substances, which are not permitted in dietary supplements.
Recalls & Warnings
December 01, 2015
Multivitamins Recalled Due to Risk of Vitamin D Toxicity
On November 25, 2015, Glades Drugs, a compounding pharmacy in Pahokee, Florida, issued a recall of its compounded multivitamin capsules because they contain high amounts of vitamin D3 (exact amount was not reported).
Recalls & Warnings
October 17, 2015
23,000 ER Visits Linked to Supplements: Palpitations, Swallowing Problems, Allergies Common
Approximately 23,000 emergency room visits per year are attributed to adverse events linked to the use dietary supplements, according to a large, long-term study by the FDA and the Centers for Disease Control and Prevention (CDC).
Recalls & Warnings
April 14, 2015
Muscle Supplement Linked to Serious Liver Injury
On April 13, 2015, the FDA warned consumers not to use the muscle growth supplement Tri-Methyl Xtreme (distributed by Extreme Products Group) because it has been linked to serious liver injury.
Recalls & Warnings
March 10, 2015
Seller of Vision Supplements Warned for Manufacturing Violations, Drug Claims
On February 26, 2015, the FDA issued a warning letter to Biosyntrx, following a facility inspection which found the company's products, including BioTears Oral Gel Caps, ZoOmega-3 Concentrated Pharmaceutical-Grade Fish Oil, EpiCor A Nutrient-dense High Metabolite Immunogen, Sight C+ Mineral ...
Recalls & Warnings
February 06, 2015
Seller of Aloe Supplement Warned for Drug Claims
On January 21, 2015, the FDA issued a warning letter to Pristine Nutraceuticals, LLC, following a review of the company's website, http://www.digestaqure.com, which found statements made about DigestaCure to be drug claims.
Recalls & Warnings
December 05, 2014
Maker of Ginseng, Zinc, Calcium and More Warned for Manufacturing Violations
On November 20, 2014, the FDA issued a warning letter to Long Island Pharmaceuticals, LLC, following a facility inspection which found the company's products to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for dietary ...
Recalls & Warnings
August 08, 2014
FDA Warns Puerto Rico Supplement Seller
On June 30, 2014, the FDA issued a warning letter to Mr. Ramon Rosa, following a review of his website, www.aceitedeguanabana.
Recalls & Warnings
February 29, 2008
FTC Sues Sellers of Weight-Loss Pills for False Advertising
On February 8, 2008 the The Federal Trade Commission (FTC) charged a business operation with violating federal law by falsely claiming that its weight-loss pills cause users to lose weight without dieting or exercise.
Recalls & Warnings
March 13, 2006
FDA Warns About Steroid Products Sold as Dietary Supplements
On March 9, 2006, the U.S.
Recalls & Warnings
March 19, 2009
QVC Settles Charges of False Claims for Supplements
On March 19, 2009, the Federal Trade Commission (FTC) announced that QVC, Inc., a TV home shopping channel and one of the world’s largest multimedia retailers, has agreed to pay $7.
Recalls & Warnings
March 06, 2009
"The Truth About Nutrition" Marketers Agree to Pay $3 Million to Settle Charges of Deceptive Advertising of Dietary Supplements and Devices
On March 6, 2008, the Federal Trade Commission (FTC) announced that marketers of dietary supplements and health-related devices have agreed to pay $3 million in consumer redress to settle FTC charges that they deceptively claimed their products treated or prevented a wide variety of serious ...
Recalls & Warnings
November 17, 2009
Steroids Found in More Body Building Supplements
On November 17, 2009, the U.S.
Recalls & Warnings
January 18, 2013
Recall: Iron Supplement Containing Motion Sickness Drug
On January 18, 2012, Advance Pharmaceutical Inc. announced the recall of one lot of Rugby NATURAL IRON SUPPLEMENT Ferrous Sulfate Tablets 325 mg, because the bottles were found to contain meclizine HCl 25 mg tablets instead.
Recalls & Warnings
December 17, 2010
FDA Steps Up Efforts to Battle Tainted Supplements
On Dec. 15, 2010, the Food and Drug Administration (FDA) took new steps aimed at keeping consumers safe from harmful products that are marketed as dietary supplements and that contain undeclared or deceptively labeled ingredients.
Recalls & Warnings
December 14, 2010
FDA Warns Consumers to Avoid Man Up Now Capsules
On December 14, 2010, the U.S. FDA warned consumers not to use Man Up Now capsules, marketed as a dietary supplement for sexual enhancement, because they contain a variation of an active drug ingredient found in Viagra that can dangerously lower blood pressure.
Recalls & Warnings
November 21, 2010
FDA Warns Consumers Not to Use Vigor-25
On November 19, 2010, the U.S.
Recalls & Warnings
April 23, 2019
"Brain Boosting" Supplements Were Promoted With Non-Existent Clinical Studies
On April 10th, 2019, the FTC (Federal Trade Commission) announced the marketers of cognitive enhancement supplements Geniux, Xcel, EVO, and Ion-Z have agreed to settle charges that they made false claims about the product, including fake research references and celebrity ...
Recalls & Warnings
September 12, 2018
FDA Urges Consumers to Avoid Kratom
On September 11, 2018, FDA Commissioner Scott Gottlieb, M.D., urged consumers not to use products containing the kratom, an herb that is often promoted for pain relief and for relieving symptoms of opioid withdrawal.
Recalls & Warnings
February 13, 2018
American College of Sports Medicine Warns of Energy Drink Dangers
A new statement released by the American College of Sports Medicine (ACSM) highlights the dangers of energy drinks when consumed by children and adolescents, and calls for more studies on the safety and efficacy energy drinks.
Recalls & Warnings
December 06, 2013
Weight Loss Supplement Claims Challenged
On November 27, 2013, the National Advertising Division (NAD) recommended HealthyLife Sciences, LLC, modify or discontinue the use of certain claims made about the company's weight loss supplement Healthe Trim.
Recalls & Warnings
June 07, 2013
Seller of Red Rice Yeast With CoQ10, Respiratory Supplement And More Warned For Manufacturing Violations and Drug Claims
On February 25, 2013, the FDA issued a warning letter to Altasource, LLC, dba Meta Labs LLC, following a facility inspection which found the company's dietary supplements, including Respiratory Response, African Mango, Coffee Black Salve, Meta-Cell, Conjugated Linoleic Acid and Red Yeast Rice with ...
Recalls & Warnings
January 16, 2010
Recall of Body Building Supplements Containing Steroids
On January 15, 2010, the Food and Drug Administration (FDA) posted a voluntary recall notice from MuscleMaster.com, Inc. regarding all lots and expiration dates of seventeen dietary supplements sold in 2009 from June 1 and Novemember 17.
Recalls & Warnings
September 19, 2012
FDA Reports Arsenic in Rice Products -- Particularly Brown Rice
On September 19, 2012, the U.S. FDA released results of its testing of nearly 200 samples of rice and rice products, finding appreciable levels in many products, although the amounts in only a few exceed the cancer-warning threshold of the State of California (10 mcg per daily serving).
Recalls & Warnings
June 04, 2012
FDA Warning on Supplement for Pain Relief
On June 1, 2012, the U.S. FDA warned consumers that Reumofan Plus, marketed as a “natural” dietary supplement for pain relief and other serious conditions, contains several active pharmaceutical ingredients not listed on the label that could be harmful.
Recalls & Warnings
November 03, 2009
Recall of 65 Dietary Supplements That May Contain Steroids
On November 3, 2009, as part of its ongoing cooperation with the Food and Drug Administration ("FDA"), Bodybuilding.
Recalls & Warnings
February 15, 2006
New Zealand Warns of Liver Toxicity from Black Cohosh
On February 9, 2006, New Zealand's Therapeutic Goods Administration (TGA) announced new labelling and consumer information for medicines containing Black cohosh (Cimicifuga racemosa).
Recalls & Warnings
March 04, 2003
U.S. Warns of Ephedra Risks and Proposes Warning Label for Supplements
On February 28, the Department of Health and Human Services (HHS) announced a series of actions designed to protect Americans from potentially serious risks of dietary supplement products containing ephedra.
Recalls & Warnings
January 19, 2002
Recall of Certain Iron Supplements
The U.S. Food and Drug Administration (FDA) released the following Class III recall information in its January 16, 2002 Enforcement Report. A Class III recall is a situation in which use of or exposure to a violative product is not likely to cause adverse health consequences:
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
October 24, 2003
Court Closes the Doors on Company That Sold Weight Loss Supplement
On October 24, 2003, the Federal Trade Commission (FTC)announced that Mark Nutritionals, Inc. and Edward D’Alessandro, Jr. have agreed to settle federal charges that they used false and unsubstantiated claims to sell their weight-loss product.
Recalls & Warnings
September 17, 2003
FDA Warns of Illness from Star Anise Teas
On September 10, 2003, the Food and Drug Administration (FDA) advised consumers not to consume "teas" brewed from star anise.
Recalls & Warnings
August 25, 2002
Canadian Recall and Stop-Sale Order on All Kava Products
Health Canada is issuing a stop-sale order for all products containing the herb kava after a safety assessment concluded there is insufficient evidence to support their safe use. The department is also requesting the recall of these products from all levels of the market.
Recalls & Warnings
May 14, 2014
Maker of Mood, Smoking Cessation Supplements and More Warned for Violations, Drug Claims
On April 17, 2014, the FDA issued a warning letter to CDJ Holding, Incorporated, d.b.a.
Recalls & Warnings
June 09, 2005
FTC Cracks Down on "HGH" Supplements; $20 Million in Consumer Redress
On June 9, 2005, The Federal Trade Commission (FTC) announced that two Florida businesses have agreed to a federal court order requiring them to pay up to $20 million in consumer redress – the largest monetary judgment ever obtained in an FTC health fraud case – to settle charges that they ...
Recalls & Warnings
August 31, 2004
Two Makers of Weight Loss and Sex Enhancement Supplements Stopped From Making Unsubstantiated Claims
On August 27, 2004, the Federal Trade Commmission (FTC) reported that two Maine-based dietary supplement marketers and their principals have agreed to settle FTC charges that they made deceptive advertising claims about their dietary supplement products, in violation of federal law.
Recalls & Warnings
March 31, 2005
FDA Warns Marketer of "Vitamin O" Product to Cease Unsubstantiated Claims
The U.S. Food and Drug Adminstration (FDA) has sent a Warning Letter (dated February 8, 2005) to Donald L. Smyth, President, R-Garden Inc., and Rose Creek Health Products, Inc. warning that its "Vitamin O" product was, among other things, being marketed with unsubstantiated health claims.