Re:In Raising the World’s I.Q., the Secret’s in the Salt (2006)
by dragonwriter on Tuesday December 19, 2017 @12:37PM
(#15961982)
> Not knowing much about the biochemical effects of iodine: is it possible Western people need less iodine?
Since the identification of the widespread deficiency and it's effects which motivated iodization of salt was first in the West among Western people, probably not meaningfully. Unlike sunlight which is highly latitude dependent, iodine availability is much more location dependent, and the high availability places (places with access to fish, approximately—both saltwater and many freshwater locations) are also where pre-civilization human populations tended to be most concentrated.
Since the identification of the widespread deficiency and it's effects which motivated iodization of salt was first in the West among Western people, probably not meaningfully. Unlike sunlight which is highly latitude dependent, iodine availability is much more location dependent, and the high availability places (places with access to fish, approximately—both saltwater and many freshwater locations) are also where pre-civilization human populations tended to be most concentrated.