Ever since manufacturers began adding iodine to salt in the 1920s, deficiency in this trace element has been relatively rare. And that's a really good thing, considering that iodine is an essential ...

When you think of iodine—the chemical element that helps your body produce thyroid hormones and regulate energy—you probably associate it with table salt. That’s because back in the 1920s, researchers ...

Iodine is essential for proper thyroid function—and your thyroid gland does a lot. It regulates your metabolism, supports your heart and nervous system, and impacts basic bodily functions, like ...