Norwegian Kelp (Ascophyllum Nodosum) High in nutrients, trace elements and minerals; especially iodine and iron. Iron increases general resistance to stress and Iodine is a “trace” mineral, or macro-nutrient, critical to the functioning of the thyroid gland. Without the presence of iodine, the gland would be unable to produce the hormone that regulates the body’s production of energy, and its growth and development. Iodine also effects the growth of hair, nails, and teeth and also affects the absorption of carbohydrates from the intestine.