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一、儿童不宜滥补钙北方气候寒冷,人们不能像南方人那样充分享受阳光,而阳光能促进骨化醇的合成。骨化醇又是钙质吸收利用不可缺少的物质,且儿童的骨骼发育迅速,需要较多的钙,因此北方儿
First, children should not abuse calcium Cold northern climate, people can not fully enjoy the sun as southerners, and the sun can promote the synthesis of calcifedin. Calcitriol is also an indispensable material for calcium absorption and utilization, and children’s bones develop rapidly, requiring more calcium, so the North children