Hello RBAD, good nuclear FAQ link!
As far as KIO3 or KI, both are listed as acceptable sources for thyroid dosing. Europe has switched to KIO3 because of the problems with the children using KI (Potassium Iodide)at and around Chernobyl.
Personally, I will be using KIO3 as well as family and friends...I like the track record of KIO3 better, (but we do offer both).
[url]www.ASOD.org[/url]