Also, saying too much iodine supresses the thyroid is also controversial, depending on which side of the fence you fall on. Some also say not to use iodine if you have hashimotos, but that is only one side of the fence, so clearly, this whole thing about thyroid and iodine is subjective, and people feel strongly on both sides.

You will have to read all sides and make your own decisions but I promise it wont be easy. There are doctors, and studies, etc, for both sides. You will have to decide which side you believe, if either.