High blood sugar is recommended to eat foods with low sugar content, grains and cereals are usually considered rice, wheat is fine grains, the other is considered coarse grains, coarse grains with relatively low sugar content, high blood sugar is suitable for people, such as black rice, brown rice, quinoa, buckwheat. High blood sugar needs a low calorie, low carbohydrate diet, staple food rationing, coarse and fine matching, increase whole grains and mixed legumes; it is recommended to eat a light diet, eat small meals, drink a sufficient amount of water, limit the consumption of alcohol, do not overeat. Grains and cereals are usually considered rice, wheat is fine grains, high blood sugar patients should avoid using it as a staple food, such as porridge, white rice, ramen, white bread, etc., should choose a variety of coarse grains mixed staple food, such as black rice, brown rice, quinoa, buckwheat, with the staple food. Patients with high blood sugar need to be treated with medication under the guidance of a doctor in addition to dietary control.