the breasts need iodine. it is good to take some of your Iodine in water every day. otherwise you just get iodide. once the tissues are saturated so that the cancer threshold is lowered, then it is not that important. at least from that perspective. i find i dont need as much iodine. the Iodide works for what i want it for. it still pushes bromides out of the skin and keeps the thyroid tickin.