Did you listen to the radio interview? Lugol's iodine (that's a type not a brand. It's 2% iodine and 4% potassium iodide) is what he recommends and what I take. When I first started taking it, I had terrible cravings. I was doing 50 drops a day. After about 2 weeks the cravings dropped off.

So people just need iodine. Wikipedia lists iodine deficiency as one of the leading causes of mental retardation. Seriously! It's in the first or second paragraph.

Iodine displaces fluoride so be careful. You can have flu-like symptoms. The lymph nodes in my underarms swelled up for a few days. They were sensitive. I massaged them (don't squeeze) and it helped. I can't drink fluoridated water anymore. I can taste the fluoride. It's vile.

Good luck.