Iodine is a type of mineral that can be found naturally in the soil of the earth as well as in the water surrounding our planet. Sea kelp is one of the best natural sources of iodine that we have access to. Iodine is a mineral that our systems require in order to produce thyroid hormones. These hormones perform a variety of critical functions, including aiding in the maintenance of our metabolism. Supports the normal production of thyroid hormones and normal thyroid function Thyroid is the hormone that controls your body�s metabolism, the process in which your body transforms the food you eat into energy.