Wheat is divided into common wheat, dense spike wheat, durum wheat, oriental wheat and other varieties. Wheat contains protein, crude fiber, carbohydrate, fat, calcium, phosphorus, potassium, vitamin B 1, vitamin B2, nicotinic acid and an allantoin component. In addition, wheat germ is rich in dietary fiber and vitamin E, refined wheat flour, B vitamins and vitamin E in wheat germ will disappear, and dietary fiber in wheat bran will also be lost. Therefore, we should eat whole wheat food.