Whole grains:  a healthy dietFind out why whole grains are better than refined grains and how to add more to your diet.  Whole grains offer a “complete package” of health benefits, unlike refined grains, which are stripped of valuable nutrients in the refining process. Grains are naturally high in fiber, helping you feel full and satisfied — which makes it easier to maintain a healthy body weight. Whole grains are also linked to a lower risk of heart disease, diabetes, certain cancers and other health problems. All types of grains are good sources of complex carbohydrates and some key vitamins