Here: http://www.intothegardenofeden.com/iodine1.html
Every cell in your body has two things; water and iodine (or it is suppose to). People have become so deficient in iodine that they are developing "diseases" that doctors will tell you not to consume it even though your body really needs it. I highly suggest you read more about iodine at the link above and if someone told you that you have Hashimotos or Graves then I would also highly suggest you read Anthony William book on chronic disease. He helped me fix my EBV (Epstein Barr Virus) Which according to modern medicine is just something you have to suffer with after they pump you full of steroids that mess up your body even worse. Even if you don't believe where he gets his information from, everything I have done from his book for myself and my son has worked very well and I was basically dying from mercury poisoning! :-)