Cereal is a kind of crude fiber food, as long as there is no allergic reaction to the crowd, can be eaten in moderation. Cereal is processed from wheat or oats, and can be divided into raw cereal and cooked cereal. Raw cereal can be used to cook porridge and cooked cereal can be brewed and drunk directly. Raw muesli is processed wheat grain, can be mixed with rice, millet, beans and so on in porridge to drink. Cooked cereal is usually brewed with boiling water and drunk directly. Muesli is relatively high in nutritional value, rich in protein, fiber and other ingredients. Each 100 grams of cereal contains 369 calories, of which 10.6 grams of protein, 78 grams of carbohydrates, 0.5 grams of fat, vitamin A522IU, 14 milligrams of calcium, 1.5 milligrams of iron. Cereal contains dietary fiber is relatively high, especially suitable for diabetes, weight loss of people to eat, but poor digestion of the crowd need to moderate control the amount of food. People who are allergic to cereal should not eat cereal.