Eating whole grains with high fiber can help prevent diseases like diabetes, obesity, and heart disease. Whole grains have more nutrients and fiber than refined grains, making them healthier. Studies show that the fiber in whole grains, along with other nutrients, can have strong positive effects on health. Researchers used observational studies to learn about the benefits of whole grains. Eating whole grains is good for your health because they have a lot of fiber and other good stuff in them.