Eating a banana before bed for a long time and not paying attention to the calorie control of other foods may lead to a certain degree of obesity. Eating bananas before going to bed is not a very good habit. The calorie content of bananas is on the high side, with 93 kcal per 100g of banana. Going to bed right after eating may result in calories not being consumed and converted into fat stored in the body, therefore, there is a possibility of gaining weight. The reason why the human body gets fat is because the calories consumed in the body are far greater than the calories consumed by the body, and the excess calories will be converted into fat and stored in the body. Banana is a high-carbohydrate, high-potassium content fruit, eat one before going to bed, the evening exercise is significantly less than during the day, the body’s calorie consumption does not go down, there will be fat, but due to the intake is not much, the degree of fat may not be obvious or slower rate of fat. It is best not to eat before going to bed, to avoid the burden on the gastrointestinal tract, but also cause the accumulation of calories, the body fat.