This marvelous herb is an excellent source of minerals like potassium, calcium, manganese, iron, and magnesium. Potassium is an important component of cell and body fluids that helps control heart rate and blood pressure caused by high sodium. Manganese and copper are used by the body as co factors for the antioxidant enzyme,superoxide dismutase. Iron helps prevent anemia. Magnesium and calcium are important minerals for bone metabolism.