Do Vitamins Cause More Harm Than Good?

Jan 9, 2012
Do vitamins do more harm than good? Several recent studies have suggested that, but the results have been controversial. Host David Naimon talks with Dr. Walter Willett, Chair of the Department of Nutrition at Harvard School of Public Health. Dr. Willett discusses these studies and which vitamins and minerals are advisable to take, and which ones you should avoid.

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