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Product Review

Reishi (Mushroom) Supplements Review

Little to No Mushroom Found in Some Reishi Supplements

Reishi Review 2026

Product Review

Vitamin K Supplements Review (Including Calcium, Vitamin D, Magnesium & Boron)

Find Out If It's Worth Taking Vitamin K and Which Products Are Best

Vitamin K Review 2024

Product Review

Licorice and DGL Supplements, Candies, and Tea Review

What's In Your Licorice? Find Out and Avoid Problems.

Licorice & DGL Review 2025

Product Review

Rice Review (White, Brown, Black, Wild, and Combination)

Discover Arsenic Levels in Rice and Our Top Picks.

Rice Review 2025

Product Review

Hemp Seed Review

We Found That 33% of Products Were Spoiled

Hemp Seed Review 2026

Product Review

Nutrition Bars Review (Protein, Energy, and Nut & Fruit Bars)

Our Tests Showed What's Hiding in Protein Bars

Nutrition Bars 2025 2

Product Review

NAC (N-Acetyl Cysteine) Supplements Review

Choose the Best NAC Supplement and Save Money

NAC Review 2026

Product Review

Canned Tuna, Salmon, Sardines & Mackerel Review

Find Fish With the Least Mercury & Arsenic and Most Omega-3s

Canned Fish Review 2025

Product Review

Nattokinase Supplements Review

Only 5 of 8 Nattokinase Supplements Pass Tests.

Nattokinase Review 2025 (5)

Product Review

DHEA Supplements Review

Beware of Differences in Dose and Price.

DHEA Review 2026

Product Review

Berberine and Goldenseal Supplements Review

Tests Reveal the Best and Worst Berberine and Goldenseal Products

Product Review

Dark Chocolates, Cocoa Powders and Supplements Review

Many Dark Chocolates and Cocoa Powders Fail Safety Tests

Cocoa and Dark Chocolate Review 2025

Product Review

Apple Cider Vinegar Review — Bottled Liquids and Supplements

Find the Best Apple Cider Vinegar and Avoid Fakes.

Apple Cider Vinegar Review

Product Review

Cinnamon Supplements and Spices Review

CAUTION: Limit Use of Some Cinnamon Due to Liver Toxin. See Our Findings and Top Picks.

Cinnamon Review 2025

Product Review

Red Yeast Rice Supplements Review

Only 2 of 7 Red Yeast Rice Supplements Approved in CL Tests

Red Yeast Rice Review 2026 3

Product Review

Amla Supplements Review

Only 3 of 8 Amla Powders and Pills Pass CL's Tests

Amla Review 1

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.

Milk Thistle Review 2025

Product Review

Beetroot Juices, Powders, and Chews Review

Our Tests Show Which Beetroot Products Have the Most Nitrate, Least Lead, and Lowest Cost

Beetroot Review 2025

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

July 08, 2013

Contamination a Common Problem in "Greens" and "Whole Foods" Products According to ConsumerLab.com

White Plains, New York — July 8, 2013 — "Greens" and "whole foods" powders and pills, made from wheat grass, alfalfa, kelp, spirulina, leafy vegetables and other chlorophyll-containing ingredients, as well as fruits, were recently tested by ConsumerLab.

News Release

March 12, 2012

Review of vitamin C supplements by ConsumerLab.com finds many of high quality but a wide range in prices

White Plains, New York — March 8, 2012 — Vitamin C may boost the immune system and is critical for maintaining healthy connective tissue, but do you need to take a supplement and, if so, how do you find one that is right for you and at the best price? ConsumerLab.

News Release

June 09, 2010

ConsumerLab.com tests "greens" and "whole foods" products; Most offer healthful nutrients, but some found contaminated with heavy metals

WHITE PLAINS, NEW YORK — JUNE 9, 2010 — "Greens" powders, made from wheat grass, alfalfa, kelp, spirulina, leafy vegetables and other chlorophyll-containing ingredients, were recently tested by ConsumerLab.com for potential contamination with heavy metals and pesticides. ConsumerLab.

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.

Recalls & Warnings

April 29, 2010

Vitamin D Overload in Supplement Sickens Users

On April 28, 2010, the New York Post reported that Gary Null, a nutrition promoter, was apparently sickened by his own product, Gary Null's Ultimate Power Meal, due to a manufacturing error that caused an excessive amount of vitamin D to occur in the product.

Recalls & Warnings

March 09, 2004

FTC Stops False Advertising by Makers of Weight Loss and Arthritis “Cures”

On March 9, 2004, the Federal Trade Commission (FTC) announced that several direct mail marketers have agreed to pay $2.

Recalls & Warnings

January 04, 2014

Beware of Supplements Claiming to Treat Brain Injury, FDA Warns

On December 31, 2013, the FDA warned consumers to avoid dietary supplements promoted to prevent, treat or cure concussions and other traumatic brain injuries (TBIs).

Recalls & Warnings

September 16, 2005

FTC Stops Weight-loss Claims about Seaweed-based Patches

On September 15, 2005, the U.S. Federal Trade Commission (FTC) announced that the alleged masterminds behind a fraudulent scheme to market two seaweed-based patches as weight-loss products to U.S. consumers have settled FTC charges.

Recalls & Warnings

October 21, 2015

Imported Supplements Can Be Dangerous, FDA Warns

On October 15, 2015, the FDA warned consumers that some supplements sold at nontraditional places, such as ethnic or international stores, flea markets, swap meets, as well as online, are often imported from other countries, and some can potentially be harmful.

Recalls & Warnings

October 17, 2015

"Herbal Viagra" Taken by Lamar Odom Was a Known Problem

It was reported this week that former NBA star, Lamar Odom, entered a coma after taking as many as 10 pills of the "herbal Viagra" formula Reload, along with cocaine.

Recalls & Warnings

October 08, 2015

FDA Warns Seller of Omega-3 "Concussion" Supplement for Drug Claims

On October 1, 2015, the FDA issued a warning letter to MPH Nutrition, LLC, following a review of the company's website which found statements made about  Re:Mind Recover, a supplement promoted for recovery from concussions, to be drug claims which are not permitted for supplements.