Great to see that you are spreading the word about testing for iodine. It’s a great easy test to use. When I do it with my patients, I let them know about a little twist that really helps out.

On the subject of people being iodine deficient, there is a lot of controversy. Some say that it has to be impossible for Americans to be deficient with all the iodine added to table salt. Case closed, right? What are not taken into account (besides the fact that there are some that are not getting enough iodine) are the other additives we eat/drink. Fluoride, chloride and bromide are all in our drinking water (and a bunch of other stuff) so that we are getting large doses of these other elements. They have a similar structure to iodine, so they can bind to things that iodine can bind to (important when looking at thyroid hormone production and conversion to T3). Since these have a higher molecular weight, they bully out the iodine from binding to the hormone. Now the hormone is bound to this other stuff and is rendered useless. So, you can have sufficient iodine intake but still be clinically deficient because of toxicity.
While supplementing iodine, you need to make sure that you perform a PROPER detox program and elimination diet. That's when you see your results (in more areas than this as well, detox will help rid of heavy metals, estrogens, etc.)
I have more of this type of stuff on my blog at www.thyroidsolutions.blogspot.com