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由于我国人民饮食习惯及膳食结构等方面的原因,钙摄入量不足的问题非常突出,尤其是青少年儿童更为严重。有关专家强调人体补钙迫在眉睫。钙是人体必须的元素之一,它组成人体骨骼,参与人体新陈代谢,每人每天排出体外的钙量约有数百毫克。一般成年人每天需摄入钙量800毫克,儿童需1000毫克,孕妇、乳母需1500毫克。人体缺钙可能引起小儿佝偻病、青少年生长发育不良、中老年人骨质疏松等50多种症状。据有关调查儿童膳食的结果表明:我国儿童钙日摄食量仅达到推荐供给量(RDA)的19—63％,全国托幼机构调查平均为42.3％。与钙摄入密切有关的佝偻病,据0—3岁全国儿童中的调查,南方患病率为27.8％,北方为52.3％,
Due to the dietary habits and dietary structure of our people, the problem of insufficient calcium intake is outstanding, especially among adolescents and children. Experts stressed that human calcium is imminent. Calcium is one of the essential elements of the human body, which constitutes the human body skeleton, involved in human metabolism, per person per day, the amount of calcium excreted about hundreds of milligrams. The average adult daily intake of 800 mg of calcium, children need 1000 mg, pregnant women, nursing mothers need 1500 mg. Calcium deficiency in children may cause rickets in children, adolescent growth and development, such as osteoporosis in the elderly more than 50 kinds of symptoms. According to the results of the survey on children’s diets, the daily calcium intake of children in our country only reached 19-63% of the recommended supply (RDA), and the average survey of childcare institutions nationwide was 42.3%. Rickets closely related to calcium intake, according to a survey of children aged 0-3, reported a prevalence of 27.8% in the South and 52.3% in the North,