Dietary control of elevated blood glucose should be provided by a professional dietitian, and the main principles are to determine a reasonable energy intake, rational distribution of nutrition, and to maintain an ideal body weight. First of all, the total energy intake should be reasonably controlled, according to their own body type to increase or decrease energy, try to control in the ideal body weight, manual laborers can appropriately increase the intake, and at the same time, should ensure that carbohydrates, fats, proteins, dietary fiber balanced intake of carbohydrates should be supplied with the most energy. In addition, according to personal habits and other recipes, three meals a day should be eaten on time, pay attention to the order of meals, and develop good eating habits. People with elevated blood glucose need to strictly control their diet, pay attention to physical exercise, balanced nutrition, rest, avoid exertion, and avoid high oil and high fat foods. At the same time, consult the endocrinology department of regular hospitals, and follow the doctor’s instructions for treatment.