For normal people, dinner in moderation with some bananas does not cause fat, but long-term excessive consumption may be fat. Banana is a common fruit, which is rich in carbohydrates, but also contains some protein, potassium and vitamins. Every 100 grams of bananas contain 93 calories, of which 22.0 grams of carbohydrates, 1.4 grams of protein, 0.2 grams of fat, 1.2 grams of dietary fiber, 256 milligrams of potassium, vitamin C8 milligrams. Consumed in moderation at dinner not only does it not cause overweight or obesity, but it also provides the body with the above nutrients. Banana is a high quality source of energy and potassium, suitable for rapid replenishment of energy and electrolytes after exercise. According to the Dietary Guidelines for Chinese Residents, the recommended daily fruit intake per person is about 200~350 grams. Moderate consumption of bananas is good for health, but excessive consumption can lead to overloading of the gastrointestinal tract, which can result in gastrointestinal discomforts such as abdominal distension and abdominal pain. Long-term excessive intake of bananas is also likely to lead to obesity.