First, you can persuade her not to go to that kind of weight-loss institution, because you know if this institution will be a pyramid scheme or something? Some institutions are not allowed to enter casually. Where else can't I lose weight? Even if I went to those weight-loss institutions, the methods I used were still those. Exercise, eat less greasy food and so on, all of which can be done at home and in the gym. If your girlfriend is afraid that she will be unconscious and can't do it, you can tell her that you will supervise her and don't have to pay so much money. I think your girlfriend will consider it.

Second, if your girlfriend insists on going to a weight-loss institution, then you agree with her, but you should also care about your girlfriend, observe her and see if there are any problems after your girlfriend enters the weight-loss institution. If there is anything wrong, then don't let your girlfriend go to that weight loss institution again. You'd better go to a weight loss institution with your girlfriend.