Grains and cereals have many benefits to the body, drinking grains and cereals can supplement dietary fiber, dietary fiber is rich in vitamins and trace elements, so for the prevention of disease, cure, increase the body’s immunity, will have a lot of beneficial effects. Often drink grains and cereals for diabetes to lower blood sugar is a great benefit, grains and cereals are not as high as the sugar in the delicate staple foods, so often and grains and cereals to replace staple foods, can significantly play a role in lowering blood sugar in diabetic patients purpose and effect. In addition, some coarse grains in grains and cereals, the endothelial cells of the cardiovascular and cerebrovascular have a certain protective effect, such as japonica rice, brown rice, etc., will play a significant improvement in blood supply to the cardiovascular and cerebrovascular, to protect the endothelial function of the effect.