Kosher salt, like all salt, is NaCl—sodium ions electrostatically bound with chloride ions and arranged in a crystal ...

Whether it's kosher, Himalayan pink or sea salt, Canadians have a wide range of choices when it comes to salts. But what many of these don't have — or don't have much of — is iodine.

It undergoes extensive processing, which removes most natural minerals, leaving behind almost pure sodium chloride. Table salt is often fortified with iodine, an essential nutrient that helps ...

On its own, pure salt is a food that never actually ... still have a best-by date due to the presence of additives. Iodized salt, for example, has a designated shelf life of around five years ...

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 ...