Iodine is an essential trace mineral needed for proper function and development of the thyroid gland. The Thyroid gland controls the rate at which we burn food (metabolism), if not enough Iodine is present in the thyroid certain health conditions may arise including obesity, goiter, mental fatigue, skin wrinkling, infections, and nervous disturbances. Needed in only trace amounts Iodine is also important for energy production and proper growth and development.