Most of us know what it feels like to fall under the spell of food - when one slice of pizza turns into half a pie, or a handful of chips leads to an empty bag. But it's harder to understand why we can't seem to stop eating, even when we know better. Former FDA commissioner Dr. David Kessler met with top scientists, physicians, and food industry insiders to uncover the shocking facts about how we lost control of our eating habits - and how we can...