Dietary control is fundamental to the treatment of diabetes, whether the patient is new to the disease or has a significant history of the disease. In middle-aged and elderly, light cases with body fat, sometimes diet control alone can achieve a cure. 1, depending on the severity of the disease to develop a diet program. Light type patients are often obese, appropriate diet is the main therapy. Take a low-calorie diet, the restriction of staple foods can be taken in a decreasing or abrupt reduction method, abrupt reduction can timely reduce the burden on pancreatic cells, generally better results. If hunger is strong, vegetables with less sugar content can be used to satisfy hunger. For those who use three meals a day, the distribution of dietary calories should be arranged according to the ratio of 1/5 in the morning, 2/5 in the afternoon and 2/5 in the evening; for those who have the conditions to adopt a small number of meals, it is more conducive to reducing the sugar load of each meal. Moderate and heavy patients should also pay attention to dietary moderation while on pharmacotherapy. The daily intake of staple foods and side dishes should be as prescribed by the doctor, and should be relatively fixed, so as not to cause blood sugar fluctuations too great urine sugar is not easily controlled, and even hypoglycemic reactions. 2, prohibit the consumption of sweet food with high sugar content. Sugar and sweets, should be listed as not eaten. Fruit depends on the condition, the condition is unstable or serious when not eaten, better control, can eat a small amount, and to observe the impact on urine sugar blood sugar, significantly higher, it is best not to eat. Tobacco, alcohol and other spicy and stimulating products should also be discontinued. 3, adhere to the principle of low sugar, low fat, normal protein diet. Diet control, should be through a reasonable calculation. Generally divided into two kinds of coarse and fine. Fine algorithm is applicable to hospitals; coarse algorithm is applicable to families. Ordinary diabetic daily staple food (carbohydrate) supply of 5 to 8 taels, protein 30 to 40g in the side dishes, fat 50g or so. Obese diabetic patients daily staple food control in 3 ~ 5 two, fat 25g, protein 30 ~ 60g; this is a low-sugar, low-fat, normal protein diet. High-protein diet is suitable for diabetic patients suffering from chronic wasting diseases, the total daily staple food protein not less than 100 g. Injected insulin patients, the staple food can be relaxed to 9 to 10 taels, other side dishes as appropriate. 4.Find out the rule of meal and blood and urine sugar changes. It is very important to find out the rule between the meal and blood sugar, especially the change of urine sugar, to stabilize the disease and guide the medication. This mainly relies on the patient’s own attentive observation in the course of the disease. Diet should also be compatible with physical activity and with drug therapy. Blood sugar and urine sugar increase, the diet should be appropriately reduced; increase the activity, the main food can be increased by half a tael, rest in bed, the appropriate reduction; insulin dosage is large, between two meals or before going to bed at night should be added to prevent the occurrence of hypoglycemia. In short, it is to seek the stability of the disease with appropriate dietary changes, maintain and restore the function of pancreatic islets, and promote the early healing of diabetes.