No, fitness will only make your body tighter (make the meat stronger) and your weight will hardly change. After practicing for a period of time, you will find yourself stronger and healthier, and you will get rid of your weak impression.

In short, I think the gym is more suitable for thin people to tighten their bodies, but people with more fat are not suitable, they will exercise vigorously and have a strong sense of muscle, which makes girls look bad.

I think personally, it is impossible to lose weight by fitness.