Did you know that whole grains are one of the best types of foods to help prevent chronic disease? Well, researchers at the Harvard School of Public Health have found that eating whole grains may help you a live longer life. While there has been prior evidence that whole grains are an excellent addition to your diet, this study adds to the current dietary guidelines for whole grains, which is to eat about 3 to 5 servings of whole grains daily. Now, eating whole grains may also help you live longer.