Zinc and iron are micronutrients whose requirements increase with pregnancy. Zinc is so crucial to primary immunologic function in pregnancy that its deficiency may be lethal in both human and animals. Iron is needed to be supplement in pregnancy in order to avert anaemia due to pregnancy. During pregnancy a woman needs additional iron to satisfy the demand of the fetus, the placenta and her increasing hemoglobin mass. This review is aimed at x-raying the significance of these mineral elements especially during pregnancy with a view to educating readers on the likely course of infant and maternal death especially in developing countries.