From what I've read on here I think Metformin has some effect but not drastic - instead the diet changes are likely to be a bigger factor. So if/when I stop taking it I'm not expecting a big increase in numbers.So I get the occasional 4s in the morning fast, and pre-meals usually in the 5s. So if I was on metformin will these be lower? I was wondering how effective that drug is as its relatively safe and benign from what I am hearing. So if you continued on your exisiitng diet and excercise regime will your numbers go up drastically if you stopped this drug?