Vitamin E linked to lung cancer High vitamin E doses were found to increase risk Taking high doses of vitamin E supplements can increase the risk of lung cancer, research suggests. The US study of 77,000 people found taking 400 milligrams per day long-term increased cancer risk by 28% - with smokers at particular risk. It follows warnings about similar risks of excessive beta-carotene use. Writing in the American Journal of Respiratory and Critical Care Medicine, an expert said people should get their vitamins from fruit and veg. Dr Tim Byers, from the University of Colorado, said a healthy, balanced...