Physicians Group Says Diet Supplements Can Be Harmful To The Liver

New guidelines on diagnosis of drug-induced liver injury warn of the impact of herbal and dietary supplements. Most of the products on the market are not well-regulated, the American College of Gastroenterology said, sometimes containing traces of heavy metals and prescription drugs. Drug-induced liver injury has been on the rise over the last decade along with the explosive growth in the use of supplements. The authors of the guidelines cited the example of catechins, a generally safe polyphenol found in green tea, an average cup of which contains 50-150 mg. But some green tea extract pills sold to help with weight loss contain more than 700 mg – particularly dangerous when taken several times a day.