Eating grapes at night may lead to obesity. Grapes contain a certain amount of carbohydrates, that is, sugar. One gram of carbohydrates produces four thousand calories. If you eat too many grapes, it will cause too much carbohydrate intake and cause excess energy, and too much energy will be stored in the body in the form of fat and cause obesity. There will be less activity and exercise in the evening, and eating grapes will lead to excessive energy in the body and cause obesity. Grapes also contain other substances, which have a certain inhibitory effect on promoting fat metabolism, so they have the image of yin and cold at night, and the grapes eaten are not easy to be decomposed and lead to obesity.