But while all these salts contain sodium, only one—table salt—has been fortified with iodine, an essential nutrient. The practice of iodizing salt began in the 1920s as a way to address ...

Lower iodine levels and use of non-iodized salt are linked to a higher risk of frailty in people with type 2 diabetes. This ...

But after iodine supplements were shown to help prevent them, iodised salt was "rolled out" in 1924. By the 1940s, goiters had all but "vanished". Now, thanks to complacency, changing diets and a ...