Patients with high blood sugar should pay attention to limiting the intake of sugar in their diet, otherwise it can be extremely harmful to their health. Diet attention matters mainly from the following four aspects. First, the ratio of the three major nutrients should be appropriate, in the case of limiting the total amount of the three major nutrients, carbohydrates, protein and fat should be in proper proportion to each other, in general, the calories provided by the three, respectively, should account for 50%-60%, 25%-35%, 10%-15% of the total calories. Pregnant women, lactating mothers, children with wasting or wasting diseases, protein can be increased appropriately, and the proportion of fat can be increased appropriately for those who are wasting. Second, eat less or do not eat nuts, nuts, the main component of the food is oil, and contains a certain amount of carbohydrates, solid should eat less or do not eat, if its hunger, not only will make the blood sugar rise, but also fat, increased islet resistance. Third, when blood sugar is not yet well controlled, temporarily do not eat fruit, when blood sugar control standards, and then try to eat fruit, that is, between the two meals when the lowest blood sugar value to eat fruit, in half an hour after eating, 1 hour, 2 hours to test blood sugar to eat what fruit, eat a small amount, to blood sugar is not high as the standard. Fourth, eat more soy-based food, high-fat patients should properly supplement protein and eat soy-based food, such as tofu, soybeans, soy milk, dried beans and so on.