The Food and Nutrition Board at the Institute of Medicine establish recommended dietary allowances (RDAs) for vitamins. The recommendations reflect how much of each nutrient you should receive on a daily basis, based on the known nutritional needs of practically all healthy people. The best way to get the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of foods from the food guide pyramid. Specific recommendations for each vitamin depend on age, gender, and other factors (such as pregnancy).
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Reviewer Info: William McGee, M.D., M.H.A., Assistant Professor of Medicine and Surgery, Tufts University School of Medicine, Boston, MA, and Chairman, Nutrition Committee, Baystate Medical Center, Springfield, MA. Review provided by VeriMed Healthcare Network.; ADAM Health Illustrated Encyclopedia, 01/02/2007 |