Walter Willett, Fredrick John Stare Professor of Epidemiology and Nutrition and chair of the Department of Nutrition at Harvard School of Public Health, recently spoke with the website Medpage Today for its “Conversations with …” video interview series.

In an interview posted July 5, 2013, Willett discussed conflicting recommendations on calcium supplements for people over 50. Watch video

Willett spoke about recent obesity prevention policies such as the move by New York City Mayor Michael Bloomberg to ban the sale of sugary drinks over a certain size in an interview posted July 6, 2013. Watch video

In the final video, posted July 7, 2013, Willett reviewed recent studies regarding four popular supplements: Vitamins C, E, D, and fish oil. Willett told Medpage Today that Vitamin D is the one to watch. “I was taught that Vitamin D only related to bone health, but it’s pretty clear that there are effects on almost every organ system in the body,” he said. Watch video

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