I was on high dose Iodine 'lugols' for several months, it did not help my hypothyroidism.
I also use coconut oil, although i don't know how much it has help my thyroid, but i like it because you can cook with it at high temperatures without danger of transfats. I only use coconut oil, butter or olive oil.
Maca is the only thing that has imcreased my temps and i think a green powder is helping too. My hypo started with the menopause, so maybe caused by unbalanced hormones in my case.
I tried doing a home cholesterol test, but couldn't get enough blood from finger to fill the resevoir, so still don't know what my cholesterol is doing.