Vitamins are touted to fight the risks of a host of diseases, even deadly ones like cancer stroke, and heart disease. Initial research in this area pointed towards the benefits of vitamin supplements in cutting risks of diseases.
To delve into this claim, the National Institutes of Health invested large sums of money into clinical trials. Findings from these trials suggested no significant benefits from consumption of vitamins and minerals in cutting the risks of cancer.
More recently, extensive clinical trials involving 50,000 people also pointed to the same inference that supplements of Vitamin E, Vitamin C and Selenium did not help in reducing cancer risks.
Paul Coates, from the National Institutes of Health said, "with vitamins there's a baseline exposure that needs to be taken into account. It makes the challenge of seeing an improvement more difficult."