I agree that i believe iodine supp is a good thing, but i am now worried that if used in areas with chlorinated water, it may end up causing problems.
Here is a study that shows cranking up to 130mgs (not mcgs) can cause congenital problems
https://www.eurekalert.org/pub_releases/2012-07/ehs-nsa072312.php
and here is a new one
"Chlorine or chloramines in your tap water can react with the iodized table salt you add to your food, creating a kind of acid called hypoiodous acid. This in itself isn't cause for concern, but the acid can then react with the foo...
This is interesting, I wonder if there's anything to it: International variation in IQ – the role of parasites (paper) by Christopher Hassall of U. Carleton.
It strikes me as the sort of thing that could be as big an issue as lead in the environment. Raise the sanity waterline: improve health!