First of all. At lunch, drink a glass of water first, then chew slowly.

Second. When eating, don't eat, eat cucumbers. If you feel that cucumbers are not full, you can eat whole wheat bread first, but you should chew slowly. Never eat after 8 o'clock.

Drink water when you are hungry a few hours after dinner. Third. Choose a sport. Exercise for 2 hours in the morning and 2 hours in the afternoon. Besides, don't sit after dinner. Get up and walk for about 15 minutes.