You might want to google a product called Hokamix 25.
It's actually an herbal product for pets, but I've been told that people who DON'T have pets order it regularly.
The reason I bought it many years ago (before I learned about iodine) is that it does wonders for dogs with arthritis. The sheltie I had at that time, "Mac", bless his dear late soul, had it really bad.
Well, within three months' time (or less), his 11-year-old body was like a puppy's again.
What we did NOT expect, was that the cataracts he was developing ALSO went away!