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 ...

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 ...

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 ...

Iodised salt all but eradicated iodine deficiency years ago, but cases are now rising. Pregnant women and children are ...

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 ...

Goiter is an abnormal enlargement of the thyroid gland, the butterfly-shaped gland at the base of the neck. While iodine deficiency is a major global cause, both too little and too much iodine can ...