David A. Kessler, MD, is is a pediatrician, attorney, and author who has served as Chief Science Officer of the White House Covid-19 Response Team since 2021. A former FDA commissioner who reinvented the food label and tackled the tobacco industry, he is the author of The End of Overeating and Fast Carbs, Slow Carbs: The Simple Truth About Food, Weight, and Disease, among others.