America has an eating problem. We focus so much on fad diets and exercises, that we often forget why we eat in the first place.
We live our day to day lives eating for both nutrition and pleasure. Snacks should not be solely viewed as treats, but smaller meals. A healthy snack should be 100-200 calories and includes both protein and unrefined carbohydrates.
Regular healthy snacking promotes a healthy metabolism and actually helps reduce weight in addition to healthy meals.