Can only say that it is effective. Whether it is effective or not depends on personal circumstances.

First of all, tightening your stomach can really reduce your food intake. Eat less, you will definitely lose weight.

Secondly, tightening your stomach is also a psychological suggestion, reminding yourself to eat less at all times.

Finally, dieting is just a way to lose weight, and it should be combined with exercise. Keeping your mouth shut is easier said than done. I hope to stick to it.

A foodie struggling to lose weight.