Three-quarters of U.S. adults are overweight or obese. But Kevin Hall, a former researcher at the National Institutes of Health and one of the world’s top experts in food science, is on a mission to take the shame out of weight gain. He joins Sanjay to talk about his new book, Food Intelligence: The Science of How Food Both Nourishes and Harms Us, and why our many misconceptions about metabolism are distracting us from the real drivers of the obesity crisis. Learn more about your ad choices. Visit podcastchoices.com/adchoices