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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
What are the health benefits of D-ribose and is it safe?
Find out if D-ribose supplementation is beneficial for heart failure, exercise performance, and fibromyalgia and learn if it is safe.
Clinical Update
6/17/2022
L-carnosine for Cardio Fitness?
Does research support L-carnosine supplementation for improving cardio fitness? Find out what a study showed among people with heart failure in our updated CL Answer about L-carnosine.
Clinical Update
4/16/2024
MitoQ for Arteries?
Did taking MitoQ, a compound related to CoQ10, improve cardiovascular fitness in older men and women? See what a recent study found in the MitoQ section of our CoQ10 & Ubiquinol Supplements Review, which includes our Top Picks among CoQ10 and ubiquinol supplements.
News Release
February 25, 2026
Top-rated Vitamin and Supplement Brands and Merchants for 2026 Based on Consumer Satisfaction
-- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users --
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
Can heat and humidity destroy whey protein and other sports nutrition supplements (e.g., creatine, BCAAs, digestive enzymes) during shipping or while storing at home?
Find out if heat and humidity can degrade creatine, BCAAs, digestive enzymes, and other muscle enhancing supplements.
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.
Clinical Update
2/04/2022
Shelf-Lives of Home COVID-19 Antigen Tests
If you’re storing a test for future use, be aware that shelf-lives range from just 5 ½ months to 12 months from time of manufacture. See how shelf-lives of popular brands compare.
Also see our Top Picks among antigen tests based on their accuracy and other features.
Clinical Update
7/11/2025
Liposomal Vitamin C
We recently wrote about a liposomal "hydrogel" vitamin C product from Life Extension purported to have improved bioavailability, but we could not locate a supporting published study. Life Extension recently directed us to the study, now discussed in the Forms of Vitamin C section of our Vitamin C Supplements Review, which includes our Top Picks for vitamin C.
Product Update
9/29/2025
Life Extension Responds
A CL member shared with us Life Extension's response to our recent findings for its "GI" probiotic product. For details, and our take on it, see the Update in our Probiotic Supplements Review, which includes our Top Picks among probiotic supplements.
Clinical Update
9/26/2023
Avoiding Counterfeits — Thorne and Garden of Life
We've added information about Thorne and Garden of Life to our growing list of brands in our article How to Avoid Buying Counterfeit Vitamins and Supplements.
News Release
February 25, 2025
Top-rated Vitamin and Supplement Brands and Merchants for 2025 Based on Consumer Satisfaction
White Plains, New York, February 25, 2025 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 8,400 responses collected in November/December 2024.
News Release
February 25, 2024
Top-rated Vitamin and Supplement Brands and Merchants for 2024 Based on Consumer Satisfaction
White Plains, New York, February 25, 2024 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 10,000 responses collected in November/December 2023.
News Release
February 25, 2023
Top-rated Vitamin and Supplement Brands and Merchants for 2023 Based on Consumer Satisfaction
White Plains, New York, February 25, 2023 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,600 responses collected in November/December 2022.
News Release
February 25, 2022
Top-rated Vitamin and Supplement Brands and Merchants for 2022 Based on Consumer Satisfaction
White Plains, New York, February 25, 2022 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,049 responses collected in November/December 2021.
News Release
February 25, 2021
Top-rated Vitamin and Supplement Brands and Merchants for 2021 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
White Plains, New York, February 25, 2021 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,647 responses collected in November 2020.
News Release
February 25, 2020
Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
White Plains, New York, February 25, 2020 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,782 responses collected in late November and early December 2019.
News Release
February 25, 2019
Top-rated Vitamin and Supplement Brands and Merchants for 2019 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
White Plains, New York, February 25, 2019 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,931 responses collected in late November and early December 2018.
News Release
February 25, 2018
Top-rated Vitamin and Supplement Brands and Merchants for 2018 Based on Consumer Satisfaction
White Plains, New York, February 25, 2018 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 11,446 responses collected in late November and early December 2017.
News Release
February 25, 2017
Top-rated Vitamin and Supplement Brands and Merchants for 2017 Based on Consumer Satisfaction
White Plains, New York, February 25, 2017 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,505 responses collected in late November and early December 2016.
News Release
February 25, 2016
Top-rated Vitamin and Supplement Brands and Merchants for 2016 Based on Consumer Satisfaction
Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 11,534 responses collected in November, 2015. Respondents gave ratings for 963 brands and 399 merchants.
News Release
February 25, 2015
Top-rated Vitamin and Supplement Brands and Merchants for 2015 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,329 responses collected in November, 2014. Respondents gave ratings for 1,709 brands and 891 merchants.
News Release
February 12, 2014
Top-rated Vitamin and Supplement Brands and Merchants for 2014 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,326 responses collected in November, 2013. Respondents gave ratings for 1,639 brands and 788 merchants.
News Release
February 01, 2013
Top-rated Vitamin and Supplement Brands and Merchants for 2013 Based on Consumer Satisfaction
Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,862 responses collected in November, 2012. Respondents gave ratings for 1,438 brands and 851 merchants.
News Release
February 01, 2012
Top-rated vitamin and supplement brands and merchants on consumer satisfaction for 2012 -- Based on ConsumerLab.com Survey of Vitamin & Supplement Users
Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,260 responses collected in November, 2011. Most respondents used multiple supplements.
News Release
December 02, 2010
ConsumerLab.com Finds Lower-priced Resveratrol Supplements Pass Tests While Some Higher-priced brands flunk
WHITE PLAINS, NEW YORK — DECEMBER 2, 2010 — ConsumerLab.com reported today that tests of supplements containing resveratrol — a compound promoted as "life-extending" — revealed that two products provided only 43.4% and 86.
News Release
January 20, 2010
ConsumerLab.com finds quality of most CLA supplements for slimming to be high; One brand mislabeled -- Report is first published in series on supplements for weight loss and slimming
ConsumerLab.com Finds Quality of Most CLA Supplements for Slimming to be High; One Brand Mislabeled
News Release
October 30, 2007
Recently tested magnesium supplements free of lead, but one product missing most of its ingredient according to ConsumerLab.com — First Major Product Review of Potential "Life-Extending" Ingredient
WHITE PLAINS, NEW YORK — OCTOBER 30, 2007 — ConsumerLab.com reported today that its tests of magnesium supplements revealed one product to contain only 46.4% of its claimed amount of the essential mineral, despite boasting a "GMP" (Good Manufacturing Practices) seal on its label.
Recalls & Warnings
June 20, 2017
Beware of Bodybuilding Supplements, FDA Warns
On June 20, 2017, the FDA warned consumers to beware of bodybuilding products because a number of these products have been found to contain steroids or steroid-like substances. Such products could cause serious and even life-threatening health risks, including:
Recalls & Warnings
February 13, 2013
Manufacturer of Heart, Multivitamin, Cranberry, and Longevity Supplements Warned For Adulteration and Drug Claims
On January 29, 2013, the FDA issued a warning letter to M.D.R. Fitness Corp. following a facility inspection which found violations of good manufacturing practices which cause the company's products to be adulterated.
Recalls & Warnings
December 19, 2022
High Impact Plant Protein Powder Recalled
On December 15, 2022, THGH Partners LLC issued a recall of one lot of its High Impact Plant Protein due to the presence of undeclared milk.
Recalls & Warnings
December 15, 2020
FDA Warns JC Ayur Life LLC for Drug Claims
On October 29, 2020, the FDA issued a warning letter to JC Ayur Life LLC following a review of the company's website, which found statements made about the company's product Heritage of Ayurveda Dia-Tonic Incudil Herbal Dietary Supplement to be drug claims.
Recalls & Warnings
December 02, 2005
Steroids Detected In Supplement
On November 30, 2005, The Washington Post reported that a dietary supplement marketed to fitness and health enthusiasts on the Internet and in body-building shops contains anabolic steroids, according to a prominent researcher.
Recalls & Warnings
January 18, 2013
FTC Upholds Ruling, POM Wonderful Health Claims Were Deceptive
On January 16, 2013, the Federal Trade Commission (FTC) announced it will uphold a judge’s ruling that makers of POM Wonderful 100% Pomegranate Juice and POMx supplements made deceptive and unsubstantiated claims that the products could treat, prevent, or reduce the risk of heart disease, prostate ...
Recalls & Warnings
November 27, 2011
FDA Seeks Permanent Injunction Against Dietary Supplement Maker -- 400+ Products Affected
On November 23, 2011, the U.S. FDA took legal action against a dietary supplement maker and owner for substituting ingredients and products without noting the changes on the final product labels. The permanent injunction, filed on behalf of the FDA by the U.S.
Recalls & Warnings
August 15, 2017
Protein Supplements Can Be Dangerous in People with Rare Genetic Disorder
It was recently reported by Yahoo Australian News (August 14, 2017) that a 25-year-old woman died after taking protein supplements and eating protein-rich foods such as lean meats and egg whites in preparation for a fitness competition.
Recalls & Warnings
December 24, 2013
Muscle Growth Supplement Linked with Liver Failure
On December 23, 2013, the FDA advised consumers to immediately stop using muscle growth supplement Mass Destruction (by Blunt Force Nutrition) because it is labeled as containing at least one synthetic anabolic steroid and has been linked to at least one reported case of liver failure.
Recalls & Warnings
May 11, 2006
Weight-Loss Marketers Pay $3 Million for Deceptive Advertising
On May 11, the Federal Trade Commission (FTC) announced that sellers making questionable weight-loss and fat-loss claims to peddle skin gels and diet supplements will pay $3 million to settle charges that their deceptive claims violated federal law.
Recalls & Warnings
March 30, 2011
More Protein Supplements Recalled for Salmonella Risk
On March 29, the U.S.
Recalls & Warnings
March 13, 2020
FDA Finds Problems at 52% of Supplement Manufacturing Sites in U.S. and 42% Abroad
ConsumerLab.com has obtained results of the FDA's inspections in Fiscal Year 2019 (October 1, 2018 - September 30, 2019) of 598 dietary supplement manufacturing facilities in the U.S.
Recalls & Warnings
July 11, 2011
Use of "Sports Drinks" and "Energy Drinks" Discouraged by Pediatric Group
A report from the American Academy of Pediatrics outlines how sports and energy drinks are being misused and provides guidance to decrease or eliminate consumption by children and adolescents.
Recalls & Warnings
June 16, 2004
Ads for Various Diet Pills and Topical Gels Don’t Cut the Fat, Says the FTC
On June 16, 2004, The Federal Trade Commission (FTC)charged a Utah-based company, five related corporations, and three individuals operating as a common enterprise with making numerous false and unsubstantiated claims for weight-loss and fat-loss gels and supplements.
Recalls & Warnings
August 21, 2013
Seller of Vitamin, Tea and MSM Supplements Warned For Drug Claims
August 7, 2013, the FDA issued a warning letter to Vibrant Life Vitamins, following a review of the company's websites which found statements made about Taheebo Life Tea, Life Glow Plus, Super Life Glow, Life Glow Basic, Vibrant Life MSM, Herbal MSM, and Organic Germanium to be drug claims.
Recalls & Warnings
May 04, 2019
High Levels of Lead Found in Chinese Herbal Supplements
On May 2, 2019, Life Rising Corporation issued a recall Life Rising Holder-W Holder Warmer capsules, Life Rising NECK-ND Neck Clear capsules, and HoliCare Metabolism Cleansing (MET-CLS) tablets after FDA testing found high levels of lead in samples of the products.
Recalls & Warnings
September 27, 2010
FTC Charges Deceptive Advertising by POM Wonderful
On September 27, 2010, the U.S.
Recalls & Warnings
February 14, 2017
Life Extension Warned for Drug Claims
On February 1, 2017, the FDA issued a warning letter to Life Extension Foundation Buyers Club, Inc.
Recalls & Warnings
March 24, 2016
27 Cases of Salmonella Infection Linked to Recalled Garden of Life Organic Shakes
On March 24, 2016, the Center for Disease Control and Prevention (CDC) announced that 27 cases of Salmonella infection, including five which required hospitalization, are now linked to recalled Garden of Life Raw Meal Organic Shake and Meal Replacement products.
Recalls & Warnings
November 18, 2015
Seller of "Hangover" Supplement Warned for Manufacturing Violations & Drug Claims
On September 17, 2015, the FDA issued a warning letter to Life Support Development Ltd, following a facility inspection which found the company's product, including Life Support Hangover Relief to be adulterated because they prepared, packed, or held under conditions that violate ...
Recalls & Warnings
August 02, 2013
Vitamin B, Vitamin C and Multimineral Supplements Recalled Due To Anabolic Steroid Risk
On July 31, 2013, Purity First Health Products, Inc.
Recalls & Warnings
January 10, 2013
FDA Warns Aloe and Herbal Supplement Companies For Manufacturing Violations
AloeScience Labs, Inc. -- On November 14, 2012, the FDA issued a warning letter to AloeScience Labs, Inc.
Recalls & Warnings
February 16, 2016
Garden Of Life Recall Expanded
On February 13, 2016, Garden of Life LLC expanded its January 2016 recall of certain Raw Meal Organic Shake & Meal Chocolate, Original, Vanilla and Vanilla Chai products to include additional lots of these products, because they have the potential to be contaminated with ...
Recalls & Warnings
May 29, 2003
Recall and Warning for Another Sexual Enhancement Supplement Illegally Containing Viagra Ingredient
On May 23, Best Life International, in cooperation with the U.S. Food and Drug Administration, warned consumers not to purchase or consume the product known as Viga.
