I was under the impression that iodine supplementation is dangerous for auto immune hypothyroid. I definitely would not agree that it’s the one mineral we can’t get enough of because it’s possible to have too much of any mineral… I do not know enough about the subject to really comment further though. Some is obviously crucial. A nutritionist who bases her work on Ray Peat’s research says that we get enough from sea salt and fish. I’ll post a link
