Wheat bran, also known as wheat husk, is a byproduct of wheat flour processing. It is wheat yellow, in the form of flakes or powder. At the end of the wheat husk, there are some embryonic buds (which are the part where the wheat sprouts), accounting for about 5-10% of the total amount of wheat husk. Some of them are about one-third to half of the flour, and the wheat husk is divided into six layers. The outer five layers contain more crude fiber, are less nutritious, and difficult to digest. Wheat husks contain a large amount of vitamin B. Rich in cellulose and vitamins, it is mainly used for food, medicine, feed ingredients, brewing, and other purposes.