The human body has more than 200 different types of cells, and those cells contain more potassium than any other mineral. Best known for its work in unison with sodium to regulate fluids in and out of the body, potassium is also closely associated with proper nerve transmission and cardiac functioning. Nature's Plus is committed to offering the best supplements available anywhere. Look for the Nature's Plus logo as your guarantee of quality. Manufactured with the Biotron of amino acid chelation.