All-Bran cereal is a brand of breakfast cereal that is primarily made from bran, the outer layer of grains such as wheat or oats. It is known for its high grams of fiber and is known as a healthy option for maintaining digestive health. All-Bran cereal typically comes in the form of flakes or bran buds and can be eaten with milk or added to other foods like yogurt or smoothies. Individuals seeking to increase their fiber intake and promote regular bowel movements may eat lots of wheat bran.