Let me tell you a quick way.
1。 Drink water before meals.
Drink at least two or three glasses of water before meals, so you will feel full and can't eat anything.
2。 Don't eat staple food
You can only eat vegetables and a little meat when you eat, and you must never eat staple foods, such as rice and noodles. Drink more soup than porridge. Eat a fruit when you are hungry ~