How Adding Iodine to Salt Boosted Americans’ IQ
18th November 2025
Iodized salt is so commonplace in the U.S. today that you may never have given the additive a second thought. But new research finds that humble iodine has played a substantial role in cognitive improvements seen across the American population in the 20th century.
November 18th, 2025 at 21:28
The Iodine was used to prevent goiters.
November 20th, 2025 at 02:08
Among other things.