Diabetics can eat bananas, but in moderation. Diabetes mellitus is a group of metabolic diseases characterized by chronic hyperglycemia, caused by defects in insulin secretion and/or utilization due to a variety of etiological factors. Therefore, diabetic patients have abnormal glucose metabolism, have poor ability to regulate their own blood glucose, and are unable to effectively metabolize (reduce) the amount of sugar in the blood after ingesting sugar. Diet should pay special attention to sugar intake. Bananas have a glycemic index of about 52, belonging to the low glycemic index food, diabetic patients can eat in moderation, preferably between meals. Bananas contain protein, fiber, vitamins, potassium, calcium and other nutrients, diabetic patients can eat in moderation to supplement the body needs. For diabetic patients, should strictly follow the medical advice, pay attention to sugar control.