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. en.wikipedia.org Submitted by kstinfo t3_xxqvb7 on October 7, 2022 at 5:39 AM in todayilearned 196 comments 5,875
DazzlingRutabega t1_irg47z9 wrote on October 7, 2022 at 8:57 PM Holy $#!+ this is amazing! Especially after hearing all of those conspiracy theories about the govt putting iodine and fluoride in the water supply. Permalink 3
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