Feb 25, 2025 · Find out the top-rated vitamin and supplement brands based for 2024 based on ConsumerLab's survey of supplement users.

Oct 13, 2025 · 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 …

Reviews of VitaCost products including quality ratings and comparisons by ConsumerLab.com which tests and reviews vitamins, supplements, nutrition, and health products. Also, new warnings, recalls, …

Jun 26, 2025 · Find the best zinc supplements and zinc lozenges. See test results for popular brands of zinc supplements and lozenges such as Cold-Eeze, Zicam, and Zand. See the clinical evidence for …

Sep 22, 2025 · Looking for the best potassium supplement? Be careful! Our independent tests revealed that one delivered 2.5 times its listed potassium and another would not break apart properly. See …

Oct 30, 2025 · Learn how to find the best acetyl-L-carnitine supplements. We purchased and tested the ingredients in acetyl-l-carnitine products and rated their quality. Find out which ones passed our test …

Jul 24, 2025 · Our tests revealed some of the best and worst ginger supplements and spices on the market. Some contained less ginger than listed or very poor quality ginger based on the gingerols …

Aug 9, 2023 · ConsumerLab tests of popular alpha lipoic acid supplements found significant differences in amounts of the most active form of alpha lipoic acid, the R-form they provided, and this information …

Dec 20, 2024 · ConsumerLab tests of Zinc supplements and lozenges for colds found that some contained far more zinc than claimed or did not disclose how much zinc they contain. Zinc …

Apr 28, 2025 · Be careful when trying to find best red yeast rice: Our tests of 10 products showed that most contained little or none of the cholesterol-lowering compound lovastatin, and three contained a …