Bec, PCOS is due to insulin resistance - one of the ways to treat it is with a low-carb, low-GI diet. I guess it's all about not causing blood sugars to spike and have your body flood itself with insulin... if you can keep your body's resistance to insulin down, I imagine you've got a reduced chance of developing PCOS.

Only thing that comes to mind straight away - I've read something about different natural supplements used to treat PCOS, but I've got a horrible feeling it was in a book that I'd borrowed from a friend and have since returned.

BW