Staple foods with low glycemic index include oatmeal, rice, germ rice, whole wheat bread, etc. Because the concentration of carbohydrates secreted by these foods after entering the human body is relatively low, the degree of influence on the concentration of blood sugar and insulin secretion in the human body is relatively small, and the glycemic index is relatively low. Eating more of these foods can effectively control the sugar content from food, reduce the symptoms caused by high blood sugar, control blood sugar, increase the effective effect of hypoglycemic drugs, and thus play a role in preventing various complications caused by high blood sugar. At the same time, cereals and germ rice also contain a variety of vitamins, which can effectively help the body to transfer the fat factor in the peripheral blood circulation to the liver for metabolism, which can play a role in maintaining the elasticity of blood vessels, restore the normal metabolism of the body as far as possible, and reduce blood sugar.