You can tell her that obesity is bad for your health. Not only does it make people look ugly and unattractive, but it also has great security risks.
For example, in the past, diseases of the rich, hypertension and hyperglycemia were all caused by obesity.
So if there are signs of obesity, hurry to lose weight through various methods. For example, diet occasionally, aerobic exercise, etc.
If your girlfriend is not determined enough to lose weight, then you can accompany and supervise her to lose weight.
In fact, you don't want your girlfriend to get fat gradually, because in that case, you will lose face. Every man wants his girlfriend to be beautiful, in that case, it is also very dignified to take it out.
But there are many ways to lose weight. It is not recommended that you let her take diet pills. There are a lot of diet pills on the market now. There are many illegal diet pills, which are very harmful to health.
So I think the best way for you is for you to lose weight with her. I don't mean to let you lose weight, but to let you work with her. In this case, you can not only supervise him, but also make your body stronger and stronger.
Have the best of both worlds, why not?