More than 100 years ago, Americans were becoming deficient in the mineral iodine. It was causing problems like swelling in the neck—called a goiter—which signals that the thyroid had become inflamed ...

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 ...

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 ...

The 13-year-old boy came to the clinic with a rapidly ballooning neck. Doctors were puzzled.Testing ruled out their first suspicion. But further tests pinpointed what they — and the boy — had been ...

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 ...