[Mineral elements in diet of pregnant and breast-feeding women. Part I. Macro minerals: calcium, magnesium, phosphorus, sodium, potassium, chloride].

During pregnancy and lactation the need not only for the energy intake increases but also for some mineral elements. The basic source of mineral elements and other chemical elements for the human organism is food. For the increased need for minerals, proper selection of food products is vital and sometimes extremely difficult to do. The article covers some of the reasons for increased need for mineral elements of pregnant and feeding women. In the first part we described the proper sources of macro minerals such as Ca, Mg, P, Na, K, CIland highlighted the factors that determine their bioavailability.