I was diagnosed with PCOS in 2003. I was put on metformin. I recently went off while breastfeeding. In this time I found PB and have been primal for 9 months. I've just weaned my son and am re-educating myself of the benefits/risks of metformin. I have come across a lot of studies that show metformin is still beneficial in non IR and non obese women. I was wondering what anyone's experience is? I know I had tummy issues on metformin, but that got better as I eased up on the dairy. I really don't know what my body is going to do yet on the primal way of life. I think I'd be willing to go back on metformin if it would indeed help...even though through PB my fasting blood sugar, cholesterol and weight are improving.