while not directly related to Potassium Iodide, I ran across this on the web today. I have no idea if this is a legitimate research center, but since I like Miso soup I figure It can't hurt to have some in the "go bag".
[snip]
"People who eat miso regularly may be up to five times more resistant to radiation than those who do not eat miso. That is the conclusion of a team of researchers at Hiroshima University’s atomic bomb radiation research center.2
Dr. Kazumitsu Watanabe, professor of cancer and radiation research investigated the radioprotective effect of miso, a fermented soy product, by testing small intestine cells of lab mice. These cells absorb nutrients and are particularly sensitive to radiation, which can easily destroy these cells.
The victims of Hiroshima and Nagasaki experienced severe diarrhea after the atomic bomb blasts because of the massive destruction of these cells due to radiation. Even when X-rays at levels lethal to humans were administered to the mice 60 percent of them survived as opposed to nine percent of the mice that were not fed miso soup.
Akihiro Ito, head of one of the research teams at Hiroshima University, found that miso helps eliminate toxins from the body through stimulation of the circulatory and metabolic systems, which may possibly make miso useful when undergoing chemotherapy."
[snip]