Dietary Diversity and Overeating 

Big Food uses our hard-wired drive for dietary diversity against us. How did we evolve to solve the daunting task of selecting a diet that supplies all the essential nutrients? Dietary diversity. By eating a variety of foods, we increase our chances of hitting all the bases. If we only ate for pleasure, we might just stick with our favorite food to the exclusion of all others, but we have an innate tendency to switch things up. Researchers found that study participants ended up eating more calories when provided with three different yogurt flavors than just one, even if that one is the chosen