I have pcos and a major knee injury. what are ways that i can lose weight if i am limited in the physical activity that i'm able to do?

Decrease diet.: If you are restricted by your knee to minimal exercise you have only one choice - eat less. With your pcos metformin might be a good drug for a variety of reasons - discuss with your doctor.

Low G.I. foods: Consider eating a low glycemic index diet. Consider foods that are 50 to 75 on the index list. This will help reduce the Insulin spikes related with polycystic ovarian syndrome. Good luck.