Posted by trapper in the iodine forum

The Mercola article also taks about this. Here is what he writes:

"A huge reason why Iodine fell out of favor is the "Wolff-Chaikoff Effect," which has been a disaster for public health.
An experiment was done that resulted in a case of hypothyroidism, which researchers misinterpreted as being caused by excessive Iodine intake. However, the individual was given intravenous radioactive Iodine -- which is toxic. It had nothing to do with food or supplement iodine intake, and the two are completely different."

I personally don't think iodine is bad, but to overuse it can create trouble.

Also I don't think it is a cure-all, but we should make sure we are not deficient by using natural iodine like Kelp.