Re: A1C levels and PCOS
5 is considered the top end of normal or safe. 6.1 wouldn't be an issue for most people, but Insulin Resistence is a precursor to both PCOS and diabetes and because of this, it's quite easy for it to go up but hard to get it down. This is probably why your doc wants to play it safe and get you back on the met.
It can be diet controlled. Talk to your doctor about this option if you'd prefer to try this first. Diets low in starchy carbs seem to work best for women with PCOS. Cutting back on wheat and wheat products (bread, pasta, etc), potato, rice and sugar might help. Try it for a couple of months and have tests done again. If there's no change then continue with diet. If the numbers go up, then definitely look at going back on metformin.