One sign of insufficient iodine is a swelling of the neck, known as a goiter. The thyroid gland in the neck uses iodine to ...

But pure salt doesn’t contain water ... Unrefined sea salt contains trace amounts of algae. Iodized salt contains iodine. And ...

Kosher salt is nearly pure sodium chloride without any additives like iodine, a necessary ingredient for human health found in iodized salt. So, it might seem odd that its taste can switch by brand.