Minerals are inorganic substances. Depending on the required amount in the body can be divided into macro and microelements. Macroelements are inorganic constituents of nutrition that man needs in large quantities and among them include: calcium, phosphorus, potassium, sulfur, chlorine, sodium and magnesium. Among the microelements are: iron, iodine, copper, manganese, fluorine, zinc, chromium, selenium, molybdenum, cobalt and vanadium.