See http://sankey.ws/dietref.html for some notes and links
on this.

COMMENT:

Look, you're not on an iodine restricted diet for any good medical
reason UNLESS it's a temporary thing as they're preparing to give you
radioiodine. Temporary is the key. And in which case the doc preparing
to do it should have provided you with a low iodine diet. Why not eat
it?

If you really can't figure out how much iodine you're getting from
exotic foods you simply MUST continue to eat, then you can always have
your doc do a urine iodine test. That's a pretty good index of whether
or not you're getting so much iodine from food sources as to intefere
with radioiodine treatment.

SBH