Diet modification, exercise, medication, regular monitoring and health education as five means of effective disease control for diabetic patients are an organic whole, in which diet modification for glycemic control and reduction of long-term cardiovascular complications and death has been confirmed in the Daqing study in China. It is important to note that we are talking about dietary modification rather than dietary control here, the reason being to avoid a focus on reducing the amount of diet that could lead to nutritional problems in patients. The following points are recognized as effective in dietary modification. 1, the carbohydrate composition of the diet is recommended to replace the common refined foods such as rice and pasta with potatoes, beans and other starchy foods in part. 2, does not always emphasize coarse grains, it is recommended to use vitamin B-rich millet, corn, oats equal to rice, wheat and so on together. 3, fat intake is recommended to use cold cooking, to avoid fatty acid denaturation and oxidation caused by high temperature. 4, it is recommended to consume fats rich in Omega-3 unsaturated fatty acids, such as olive oil, rice bran oil, corn oil, etc. 5.Protein is recommended to consume high-quality protein, such as animal-derived protein advocate fish, beef, lamb, etc. In addition, soy protein is not a difficult alternative to long-term access to the above animal-derived protein. 6, pay attention to control the amount of sodium intake in the diet, it is recommended that adults consume the equivalent of 5-6g of sodium contained in table salt per day per day, pay attention to visible sodium and invisible sodium. 7, three meals a day on the deployment of attention to the richness of breakfast, dinner simplicity, breakfast, pay attention to the intake of fresh fruits and vegetables. 8, fruit intake is recommended to be placed between meals or after exercise, it is recommended to consume fresh fruit with more water, but the amount needs to be controlled. 9, dietary adjustment can be oriented to all members of the family, regardless of whether they already have abnormal glucose metabolism, dietary supplements can be used as a supplementary means of dietary adjustment.