Results from a new study reveal diets rich in whole grains can lower the risk of diabetes and heart disease. Those who consume diets high in whole grains have a lower risk of diabetes and heart disease. Whole grains are a rich source of fiber, minerals, vitamins and antioxidants. Whole grain foods include bran, whole wheat, fruit and vegetables. It should be noted that higher intake of whole grains was associated with higher levels of physical activity, greater fruit and vegetable intake, less smoking and lower consumption of alcohol and saturated and monounsaturated fats.