Happiercalif
Happiercalif t1_irhhfjo wrote
Happiercalif t1_irhdom4 wrote
Reply to comment by RunningNumbers in TIL A 2017 study found that the introduction of iodized salt in 1924 raised the IQ for the one-quarter of the population most deficient in iodine. by kstinfo
I don't think that's true except possibly for very near the ocean. In the 1990s I read research about the Mongolians being very iodine deficient.
EDIT if you look up the Goiter Belt, it doesn't correlate to mountains. The Great Lakes region was especially bad, for instance.
Happiercalif t1_irezbms wrote
Reply to comment by SaltedGreenMilk1987 in TIL A 2017 study found that the introduction of iodized salt in 1924 raised the IQ for the one-quarter of the population most deficient in iodine. by kstinfo
Iodine is added to salt artificially. In nature it's in seafood and I'm not sure where else.
Happiercalif t1_j7htpcl wrote
Reply to Best value in full grain leather belts (USA)? by upside_down_chair
Etsy