I actually put Joel's claim to the test. Harvested fresh green black walnuts from a tree and made as strong an extract as I possibly could.
There was no detectable iodine effect whatsover. None. Zero. Zilch. Nada.
Calling bullshit on Joel's information.
Not to discredit some of his other claims which I agree with, but the tree iodine claim is rated
All the anti-iodine people do is make strange claims with no proof, not even any anecdotal evidence. Nothing. Just weird irrational fear of iodine. The claims that it sterilizes all bacteria and living tissue is also nonsense as you can raise iodinated dough into bread.
Joel needs to get rid of the lead in his brain. 50 years of fruit juice has not worked yet.