钙在人体形成和维持骨骼和牙齿的结构;维持肌肉和神经的正常活动;参与血凝过程;钙在体内还参与调节或激活多种酶的活性作用;能降低毛细血管通透性,增加毛细血管壁的致密性,使渗出减少,有消炎、消肿及抗过敏等作用。在不同的生理期人体对钙的需求不同。1人体对钙的需求人生不同的生理期对钙的需求量较大的几个阶段:(1)婴幼儿时期:在母亲怀孕期间钙摄入不足,母乳中钙含量少;以 Calcium forms and maintains the structure of the bones and teeth in the human body; maintains normal muscle and nerve activity; participates in the coagulation process; calcium also participates in regulating or activating the activity of various enzymes in the body; The denseness of the blood vessel wall, so that less exudation, anti-inflammatory, swelling and anti-allergic effects. In different physiological periods of human demand for calcium is different. 1, the human body needs of calcium Physiological period of different life requirements of calcium in several stages: (1) infants and young children: in the mother during pregnancy, inadequate intake of calcium in breast milk less;