Does vitamin D help fight cancer aggression?

Can vitamin D help fight diseases such as cancer? Jonathan talks with Professor JoAnn Manson to try and find out. Professor JoAnn Manson is a professor of epidemiology at the Harvard School of Public Health and one of the world's most cited researchers. She’s run multiple enormous studies, with over 20,000 participants, to uncover the real effects of vitamin supplementation on our health. Dr. Sarah Berry is one of the world's leading experts on human nutrition. She has run more than 20 randomized clinical trials looking at how humans respond to different fats. Watch the full episode here: https://www.youtube.com/watch?v=N83s8pz3_zw If you want to uncover the right foods for your body, head to http://joinZOE.com/podcast and get 10% off your personalized nutrition program.