I think that the use of salt-loading in Iodine supplementation serves a purpose, though, for a time. Bromide replaces chloride in extracellular tissue and the use of salt alone will displace that bromide, never mind the iodine. Salt-loading has a long history of use in the bromide-toxic.
How long should one salt-load? I dunno. Better to avoid sources of bromide exposure.
love to hear about the alkali metals. Did I ignore you on that long ago and far away? Didn't mean to:)