Minerals are chemical compounds found in all organs, bodily fluids and tissue. The body must be supplied with a sufficient amount of minerals. Minerals can be divided into bulk elements (sodium, magnesium, potassium, calcium, phosphorous, sulphur and chlorine) and trace elements (iron, iodine, fluorine, zinc, manganese, selenium, silicon, copper, molybdenum, chromium, nickel, cobalt and vanadium). The required daily intake of bulk elements is much higher than trace elements.