Iodine-based refers to substances or compounds that contain iodine, a chemical element essential for various biological functions. Iodine is commonly used in medical applications, such as antiseptics and contrast agents in imaging studies. It plays a crucial role in thyroid hormone production, which regulates metabolism in the human body. In addition to medical uses, iodine-based compounds are also found in certain food products and dietary supplements. They help prevent iodine deficiency, which can lead to health issues like goiter and developmental problems. Common sources of iodine include seaweed, fish, and iodized salt, ensuring adequate intake for overall health.