Radioactive iodine (RAI) therapy is a type of treatment for an overactive thyroid, hyperthyroidism, and certain types of thyroid cancer. The term "radioactive" may sound scary, but it is a safe and ...

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 ...

Overview: Iodine is commonly taken to increase iodine levels. Common side effects include diarrhea, nausea, vomiting, rash, or stomach discomfort. Serious side effects are rare but can include thyroid ...