Ginseng may be helpful in treating diabetes, preventing colds and flus, reducing cancer-related fatigue, and in other conditions. But ConsumerLab.com has found problems with many ginseng supplements over the years. In this newest Review of Ginseng Supplements, five out of eleven ginseng supplements selected for testing contained less ginseng than expected from label claims or were contaminated with lead and/or pesticides. One ginseng supplement had only 60.3% of its claimed amount of ginsenosides -- key ginseng compounds.
Six ginseng products passed the testing, along with five products tested through ConsumerLab.com's voluntary certification program. Two brands similar to a product that passed are also identified. Testing focused on Asian ginseng (Panax ginseng) (also called Korean ginseng) and American ginseng (Panax quinquefolius).
ConsumerLab.com found large variation in the amount of ginsenosides being provided by ginseng supplements. Suggested daily servings yielded anywhere from 6 mg to as much as 304 mg of ginsenosides, indicating that the products might differ in their effects.
You must be a member to get the full test results and quality ratings for ginseng supplements and ConsumerLab recommendations. In this comprehensive report, you'll discover: