What is iodide ions?

Iodide ions (I-) are negatively charged ions derived from the element iodine. They are important for human health, as iodide is a necessary nutrient for the thyroid gland to produce hormones that regulate metabolism. Iodide ions can be found in foods such as seafood, dairy products, and iodized salt. They can also be taken as dietary supplements to prevent iodine deficiency. Iodide ions are also used in chemical reactions, such as the formation of silver iodide in photography and the production of organic compounds. In addition, iodide ions have been studied for their potential use in radiation therapy for cancer treatment. Overall, iodide ions play important roles in both human health and industrial applications.