Following Up: Supplements

Dr. David Agus, professor of medicine and engineering at University of Southern California Keck School of Medicine and author of The End of Illness, referred to the lack of proof of the need for vitamins and supplements in his appearance on the Brian Lehrer Show in February. Agus and Jeffrey Blumberg, professor at the Friedman School of Nutrition Science and Policy at Tufts University, debate the need for supplements.