@Walky
I am with Alberto, metformin has many beneficial effects.I have to admit that it also does not affect me almost, except that I have taken fat (nuts) after taking it due to ignorance of the subject.
I would also tell you that you try not to leave it.As I have told you, it does not give me side effects but many people say they have them at the beginning and then they are left.
Important to take it at the end of meals.
Greetings.