Or any of the other things the unscrupulous are trying to sell you as radiation remedies. A couple of recent conversations showed me that this information isn't getting out, or isn't being believed.
Here's a message from from the American Association of Clinical Endocrinologists, the American Thyroid Association, The Endocrine Society, and the Society of Nuclear Medicine on why you shouldn't.
And there is stuff out there that is just plain junk. Anything to make a buck.