The sugar content of bananas is about 11%, and the sugar in bananas can provide energy for the body’s metabolism, so diabetics can eat bananas in moderation. In addition to sugar, bananas are also rich in fiber and potassium ions, which can not only increase satiety, promote intestinal peristalsis and improve constipation, but also enhance the pumping ability of the heart and improve the discomfort caused by hypokalemia. Bananas contain carbohydrates to provide energy to the body, but also rich in dietary fiber, which can make people feel full, promote intestinal peristalsis, accelerate defecation, play a role in preventing constipation, weight loss, slimming. Rich in potassium can also diuretic, reduce swelling, lower blood pressure, and prevent cardiovascular disease.