Diet for diabetic patients: first, to control the total calories, main food and side dishes, and promote the consumption of coarse rice, noodles and a certain amount of miscellaneous grains. Secondly, it is necessary to ensure adequate nutrition, for example, to supplement carbohydrates, fats and proteins, a moderate amount of lean meat, eggs, milk and so on. Nutrition should be reasonably distributed, with protein not exceeding 15% of total calories, at least 1/3 of protein should be derived from animal protein, and fat accounting for about 30% of total calories. To develop very good eating habits, so that blood glucose is maintained at a basic normal level, eat more high-fiber foods, promote the consumption of green vegetables, beans and coarse grains, fruits containing relatively low sugar. The diet should be light, no greasy, no sugar, less salt, salt control in less than 10g, less or no alcohol, no smoking, to avoid glucose, sucrose, honey and its products, all kinds of candy, desserts, ice-cream and sugary drinks, etc. The control of all these foods is very important for diabetic patients.