On 12/11/2011 03:02 PM, David Harrison wrote:

>
> I read somewhere that a way to test of iodine deficiency and
> supplement at the same time is to put some on the belly(about the
> size of a half dollar. If the stain disappears quickly than there is
> iodine deficiency. If the stain stays there for a couple of days you
> have enough. Supposedly the body will absorb it from the skin quickly
> if it is needed. Has anyone else heard about this method and if it is
> real or BS.
>
>

It's real, my stain disappeared in <2 hours, but it depends on a bunch 
of things like atmospheric pressure so not reliable.
Best have it done by a competent person, if you must test.

William