I've said for years that we are being made ill by our water supply. Fluoride is not a good thing for the body. I use Iodine supplements to help negate the fluoride effects. Helps to regulate your thyroid as well. If you want iodine in your salt you have to buy Iodine salt b/c regular salt does not have iodine. That's just for starters. Also kelp helps too among other things.