Eating real food flips a hidden switch that makes us crave nutrients, not calories, and that could be a game-changer for weight and health. Credit: Shutterstock For people who committed to an unprocessed food diet as a New Year's resolution, research suggests the change may guide food choices in a surprising way. Instead of gravitating toward higher calorie whole foods such as rice, meat, and butter, people naturally tend to eat much larger amounts of fruits and vegetables. That shift alone may