We stay hungry longer the more diverse the flavors in a meal or snack. If flavors are thoughtfully distributed, we fill up on fewer calories. This explains why, for instance, people can eat a holiday meal to the point of feeling unpleasantly full, yet still have room for dessert. No, that's not because you have a 'hollow leg.' It's because of sensory specific satiety; the hypothalamus is hard-wired to respond to flavors.

David Katz