I really have no idea how it works. Ms Shomon stated in her book that it worked for lots of people but not everyone. So I tried it and it worked for me. I believe she also mention in her diet for thyroid patients said not to eat peanuts or soybeans or that may have been Dr. Mercola. One or the other I can't recall right now. Anyway I wish you the best and hope that you find something that will take care of this. I hope you can find her book and read it thoroughly. It will be well worth you time. If your library doesn't have it iherb was selling them for eight dollars which was a much better price than Amazon.