You could try supplements, selenium in small dose working up
to 400 mcg but no more then 600 mcg with the same amount of
chromium, and zinc working up
to 50 mg per day. Or eat brazil nuts if you can afford the weight. I take the selenium route and sometimes eat the nuts as well regardless of the supplements. This route will take longer if its going to work than T-3/Armour which are chemicals that our body is not use to. Plus Armour is said to cause TED.