Metformin is an oral medication used to treat type 2 diabetes. Type 2 diabetes is what most adults with diabetes have – they make insulin, but it’s effects are weak, and blood sugar rises. 10-20% of Americans probably have pre-diabetes and 8% might merit treatment with metformin.
Metformin helps lower blood sugar, and in some studies, helps people to lose weight. But, like most therapies, there are side-effects. It seems to lower vitamin B12 levels, which can result in neuropathy (nerve damage) and chronic pain as a result.
So, the best thing to do is to eat a healthy diet, exercise, and lose weight! I was prescribed metformin and took it for some months because my hemoglogin A1C (Hgb A1C) was borderline-high (prediabetes). As I lost weight, my HgbA1C fell after weight loss, and I stopped the metformin on my physician’s advice.