The changes of Hb concentration (6.2 ± 7.5 g / L), serum ferritin (8.8 ± 7.7 mg / L), serum zinc (0.67 ± 1, 37 mmol / L) serum retinol (0.26 ± 0.24 mmol / L) of intervention group have been significantly higher (P<0, 05 - 0, 01) than those of control group: respectively 2.1 ± 3.7 g / L, - 1, 1 ± 9, 9 mg / L, 10.9 ± 1.2 mmol / L and 0, 18 ± 0, 21 mmol/L.