Drinking more water can not only promote metabolism, perspiration, urination and detoxification, but also make people feel full and not easy to eat more, thus reducing food intake. Tip: Drink more water, not more alcohol. Drinks have a high sugar content and are easy to gain meat. 2. Eat more vegetarian food and less meat. After all, there are a lot of cellulose and vitamins in vegetables and fruits, which is enough for you to consume body energy. 3. Exercise more, and consume energy in the body through brisk walking, skipping rope, table tennis, badminton, swimming and other moderate exercises, but be careful not to stimulate appetite because of exercise, which is counterproductive.