The scientific and effective way to lose weight in clinic is to control diet for a long time and insist on exercise. Especially for people with big bellies, this is abdominal obesity. The diet is light, it is best to have three meals a day, and the staple food for each meal should not exceed 100g. Don't eat high-calorie food, such as fried dough sticks, fried cakes and potato chips. Don't drink. You can eat some fruits properly. It is recommended to drink plenty of water during weight loss, which can promote energy metabolism and can also be used for abdominal hot compress and massage. In addition, doing moderate-intensity exercise for more than 90 minutes every day is good for losing weight. Regular exercise includes swimming, cycling, running fast, walking slowly, hula hoop, pull-ups and push-ups. Losing weight is a long-term process that needs perseverance. Long-term adherence to diet control and exercise will certainly have an effect.