Hey, I have PCOS and took metformin for 6 weeks. I have been eating low carb for over 2 years, lost 90 lbs and pretty much have eaten this way consistently. The PCOS symptoms, thought they are not as bad as they used to, have subsided considerably. But I wanted to see if being on metformin would help further, and honestly it didn't. It made my cravings for sweets and fruits sky rocket. so I stopped takingit a while ago and have stayed on eating lifestyle. You should check with your doctor to see if your eating plan and metformin would work for you. wish you the best.