Is it better for girls to lose weight in the gym or yoga studio?

If you have thin legs, I suggest you run and squat (you will have muscles and less fat, so don't squat again).

Running can also thin out the fat on your back. However, I don't know how to make girls slim down.

I think whether a girl is slim depends on her figure rather than her weight.

In addition, dieting is not a good choice.