Whole grains like wheat, rice, oats, and rye comprise three edible layers: the bran, the endosperm, and the germ. Bran is the hard outer layer removed during refining to give grains a smoother texture and improve their shelf life.

However, it is a rich source of essential nutrients, particularly fiber, that benefit your health and may even prevent chronic disease.

This article discusses the health benefits, nutrient composition, and food sources of bran. Wheat bran also contains a prebiotic fiber that may promote the growth of Bifidobacterium, a healthy bacteria found in your gut.Because of these properties, wheat bran has been linked to improved digestive health and a decreased risk of heart disease, colon cancer, and metabolic disorders, such as diabetes.

On the other hand, oat and barley bran are excellent sources of insoluble and soluble fiber, which dissolves in water and turns into a gel-like material, slowing down digestion.They're also rich in beta-glucans, a type of soluble fiber linked to lower cholesterol levels and the prevention of heart disease.

High-fiber diets can increase metabolism and decrease the risk of heart disease, stroke, and type 2 diabetes. Getting adequate amounts of this nutrient can also help reduce the risk of certain cancers and aid in weight loss. Bran is the hard outer layer of whole cereal grains. It is rich in nutrients and an excellent source of fiber. Bran may offer several health benefits, including improving digestive health and reducing the risk of heart disease, diabetes, and certain types of cancer. You can include more bran in your diet and increase your daily fiber intake by sprinkling it on muffins, smoothies, casseroles, and hot cereal.