If you want optimum health, you have no choice. Every cell in our body requires Iodine which is attached to cell receptors. Unfortunately the toxins of bromide, fluoride & chlorine also attach to these cell receptors and displace what little Iodine we have. http://www.freegrab.net/Iodine%20update.htm#section18
Iodine is also required for other hormones to be detected by their cell receptors, so will help diabetes and hormonal balance.
You need Iodine to prevent ovary cysts, fibrocystic breasts, uterus fibroids endo, & brain fog & related cancers.