Vitamins ‘may shorten your life’.BBCnews, April 16,2008. Research has suggested certain vitamin supplements do not extend life and could even lead to a premature death. A review of 67 studies found "no convincing evidence" that antioxidant supplements cut the risk of dying. Scientists at Copenhagen University said vitamins A and E could interfere with the body’s natural defences. "Even more, beta-carotene, vitamin A, and vitamin E seem to increase mortality," according to the review by the respected Cochrane Collaboration. [ See ]