Re: MSM supplement...good or bad for HypoT?
There are two active parts to MSM. The sulfur & the methyl groups. While some people w/hypoT, particularly when untreated or undertreated, have difficulty with sulfur, most people don't. Sulfur is a time-honored remedy for arthritic pain & has anti-inflammatory effects.
My doc (naturopath) has said up to 4 grams per day of MSM is OK for me, but I use much less, about 250 mg. 2 x/day. MSM is very inexpensive if you buy it in the bulk powder form. It can also be added to baths, foot soaks, etc. for additional pain relief.
Some people swear by chondroitin, however, I didn't find it particularly helpful. I do use N-acetyl-glucosamine, however, to great benefit for my prematurely osteoarthritic knees. I tried other forms of glucosamine & the acetylated one worked best for me. YMMV.
Have you tried EPA fish oil concentrate? It's really the best thing for stiffness & pain ... I couldn't live without it. (But it can't be used by anyone w/bleeding or clotting problems.)