Bran, the hard outer layers of cereal grains, has long been recognized for its nutritional value. It is especially rich in dietary fiber and plays a vital role in maintaining digestive health. The bran of various grains such as wheat, oats, and rice is commonly used in food products designed to provide higher fiber content. Bran has also been historically used as animal feed and in the production of whole-grain flour.
In recent years, bran has gained popularity as a health food due to its high fiber content, which aids in digestion and helps prevent constipation. It is often included in baked goods, cereals, and health supplements. Bran can be consumed in its raw form or incorporated into foods to increase fiber intake.