When taking vitamin supplements can be deadly

Unless you have a specific dietary deficiency, the best nutrients come from your food, not supplements. — Fotolia

A new study demonstrates the ineffectiveness of dietary supplements in reducing the risk of death. Some may even have the opposite effect.

Published in The Annals of Internal Medicine, this research was carried out on 30,899 adult Americans aged 20 and over, who participated in a national survey on health and nutrition between 1999 and 2010.