Most salt in the US has iodine added to it because of geographical-based deficiencies →
I’ve heard of the “rust belt” in the US, but never the “goiter belt”. Also the following quote could have only come from world before the industrialization and globalization of food & trade:
“the soil there didn’t have much iodine. Nor did the freshwater Great Lakes. And so the inhabitants didn’t have much iodine, either”
That it took World War I for people to realize there was a real issue is also incredible. Along with adding fluoride to water, this had to be one of the most successful, top-down dietary health interventions in the US ever. And I now know that I’ll never have an iodine deficiency — salt is the best friend of we anosmiacs.
eyeintim 
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