Diabetic patients should choose low glycemic index fruits to eat while keeping the total calories in their daily diet constant, in order to avoid a significant rise in blood glucose after eating. Fruits with low glycemic index include sundried fruit, guava and cherries. Before considering which food to choose, diabetics should calculate their total daily calorie needs based on their weight, daily activity intensity, etc., and then allocate the calories to each meal. By determining the number of servings of each type of food, and choosing the type of fruit and the amount of food under this premise, you will not overload your blood sugar by consuming too many calories. Each food has its own glycemic index, which is how much the same serving can raise your blood sugar. The higher the glycemic index, the higher the glycemic capacity of the food. Taking fruits as an example, different fruits can also be categorized into three levels of glycemic index: low, medium and high. When diabetic patients are choosing, choosing fruits with low glycemic index can avoid a significant rise in blood glucose after meals. Some diabetic patients with blood glucose more than 10mmol / L, indicating that blood glucose control is not ideal, in this case temporarily inappropriate to eat fruit, but should be to the endocrinology department for consultation, blood glucose control to achieve the standard, and then choose the appropriate fruit to eat. Diabetic patients need to eat fruits under the premise of ideal blood glucose, within the limits of the total daily dietary calories to choose the type of fruit, fruit types to low, medium glycemic index is appropriate.