Copy and Pasted this from my comment on your other post:

Hi Gigi! Everyone is different and there are several types of PCOS - so the best treatments tend to vary. Do you know if youre insulin resistant? What are the symptoms you hope to treat?

For me - I track my calories, eat moderate carbs, watch my sugars, and stay away from traditional dairy. But like I said everyones different. I suggest starting with one small habit, like no more soda, or eat a better breakfast, etc and go from there. Best of luck!