During pregnancy, a woman\’s body loses a lot of calcium because all the calcium needed for fetal development comes from the mother\’s body. In other words, a considerable part of the calcium already in the pregnant woman\’s body will enter the baby\’s body. If the calcium intake of pregnant women is insufficient, it will have a greater impact on the fetus and the pregnant woman itself. When there is a mild calcium deficiency, the body will mobilize calcium from the mother\’s bones to maintain normal blood calcium. When there is severe calcium deficiency, pregnant women will have leg cramps