extra intake kcal/day for pregnant women. The number of pregnant women is computed through the number of 0 year old children each year (Lutz dataset). According to Human energy requirments , Fao (Rome, 2004) , a woman requires an additional food of 845 kcal/day and 675 kcal/day of food on average furing her pregancy and lactation period respectively. According to Naegele?s rule, the mean gestation period is 280 days (40 weeks) and the lactation period 6 month (25 weeks).