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 ...

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 ...

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 ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

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 ...