Diabetic patients can eat blueberries. Blueberries do not contain much sugar, no more than 10%, so compared to bananas, dates and other fruits with high sugar content, blueberries are more suitable for diabetics. In addition, the glycemic index of blueberries is not high, so diabetic patients will not cause a significant increase in blood sugar levels after eating them. Diabetic patients eating blueberries in moderation also have the following benefits: 1, protect vision: With the prolongation of the disease, diabetic patients are prone to diabetic eye disease, especially the retina is prone to some problems. The anthocyanins in blueberries can promote the regeneration of retinal cells in the retina, helping patients to delay the damage of diabetes to the eyes and enhance vision; 2, antioxidant: blueberries in the anthocyanins have a certain antioxidant effect, for delaying the occurrence of complications in diabetic patients, improve immunity is also helpful; 3, enhance bone quality: diabetic patients are prone to secondary bone loss and osteoporosis, blueberries contain Trace elements calcium, manganese, etc., have certain benefits to the bones; 4, improve sleep: blueberries can help diabetic patients to improve sleep, for diabetic patients to control fasting blood sugar has a better effect. Because if diabetic patients sleep poorly, may cause the next morning fasting blood sugar rise, resulting in blood sugar fluctuations. Diabetic patients should pay attention to the time when eating blueberries, generally between meals will not lead to a rapid rise in blood sugar levels after meals, in addition to control the amount, do not eat too much. Overall, eating blueberries in moderation for diabetics will not have much effect on the condition, but will have more benefits.