6. Whole Grains

Whole grains like oats, whole wheat, and quinoa improve digestion by adding bulk to stools and feeding healthy gut bacteria. While some fad diets will attempt to discourage you from eating these foods, we assure you that they are good for your health and that your body does, in fact, need them. The quantities you need, of course, will depend on the amount of physical activity you do and what kind of physical activity that is.