I have PCOS with insulin resistance, I was dx'd at 13 (16yrs ago). The last RE that I saw recommended the South Beach Diet and it's been the ONLY diet that I have lost weight without taking the metformin.
I have noticed that I cannot eat most fruits without cravings and weight gain. Starches are my weakness, prefer them over sweets and fruit anyway, but if I stick to whole wheat and allowed starches, I am good.
Most PCOS sufferers are worried about fertility so I will add in that I have 3 kids
(all conceived naturally after failed fertility treatments)
Is there anything specific you are wanting to know about pcos and south beach?