You can deliberately tuck in your abdomen.
Before you know it, your stomach will flatten out.
At the same time, you should eat enough every time.
Eat greasy food.
Have soup after dinner.
Drink before eating.
If you are hungry
You can choose to eat less and eat more.
Or drink more water.
Eat more fruit
Have no time to exercise
Then walk as many steps as possible.
It's also good to stand for half an hour after dinner.
Do sit-ups two or three times a week.
The effect will be faster and more obvious.