Diabetic patients can eat bananas in moderation, but not in large quantities for a long time. Every 100 grams of banana contains 75.8g of water, 1.4g of protein, 22.0g of carbohydrates, 60.0mg of carotene, 8.0mg of vitamin C, and 256mg of potassium. Usually banana glycemic index is 52, belongs to the low glycemic food, so diabetic patients in the case of stable blood sugar control can eat bananas in moderation, generally will not cause adverse effects on the condition. Bananas are rich in dietary fiber can promote gastrointestinal peristalsis, prevent constipation; contained vitamin C has antioxidant effect, to improve the skin condition has some benefits. It is worth noting that diabetic patients should avoid eating large quantities of bananas for a long time, which will have an impact on the health of the organism and should be taken seriously. It is recommended that diabetic patients should pay attention to the need to rationalize their diet. Diabetic patients should also follow the doctor’s instructions to use medication, daily attention to monitoring blood glucose values, regular review.