I am a naturopath. I take hair samples, send them to a lab, and get a report back on people's mineral levels. The one mineral that is not on the report is Iodine because KI is water soluble and it washes out of the system quickly. That is why you need to take it daily, or at least several times per week. So what you are saying makes no sense, unless you are talking about the radioactive kind of Iodine that causes cancer. How old are you? Where do you live? Have you been exposed to radioactive Iodine somehow?