People with high blood sugar should try to avoid high sugar diet, control calorie intake, pay attention to dietary diversity, diabetic patients should be developed by a professional nutritionist individualized medical nutrition therapy. People with high blood sugar should control the total energy intake, three meals a day intake should be based on their own body weight, age, labor intensity, to ensure adequate intake of carbohydrates, proteins, fats, diabetic patients should choose a low glycemic index (GI) food, is conducive to blood sugar control. For low body weight, children, lactating women and other people can appropriately increase the energy intake of 10% to 20%, obese people should be appropriate to reduce the amount of intake. People with high blood sugar can eat some food rich in dietary fiber, which can slow down the absorption of food, reduce the peak of postprandial blood glucose, and help improve metabolic disorders. Found that elevated blood sugar should be timely to the hospital, clear with or without diabetes, under the guidance of the doctor reasonable diet and treatment.