Nutrition:钙和维生素D摄入量对儿童发育的影响

2015-05-15 MedSci MedSci原创

人的生长离不开营养的摄入,穷困的南非国家,肝是经常可以吃到的,因此该地区人群并不会缺乏维生素A。那么是什么影响了该地区儿童的发育呢?近期van Stuijvenberg ME等人进行了一项横断面研究,探究该地区营养因素与2-5岁孩子高水平的发育不良的关系。 研究者根据参与者24小时膳食摄入回忆评估孩子们的饮食摄入量,并且测定孩子身高、体重,根据喂养史、孩子的习惯性牛奶摄入量、以及孕期母亲的物质使用

人的生长离不开营养的摄入,穷困的南非国家,肝是经常可以吃到的,因此该地区人群并不会缺乏维生素A。那么是什么影响了该地区儿童的发育呢?近期van Stuijvenberg ME等人进行了一项横断面研究,探究该地区营养因素与2-5岁孩子高水平的发育不良的关系。

研究者根据参与者24小时膳食摄入回忆评估孩子们的饮食摄入量,并且测定孩子身高、体重,根据喂养史、孩子的习惯性牛奶摄入量、以及孕期母亲的物质使用情况收集所需信息(n=150)。其研究成果发表在近期《Nutrition》上。

研究结果显示,纳入人群的整个儿童发育不良率为36.9% (CI 29.2, 44.6),并且随年龄增长其发病率增加,如4-5岁孩子中发育不良率为49%。出生体重与年龄别身高显著相关的z值(HAZ; r = 0.250, P = 0.003),在孕期吸烟饮酒女性的后代该值低于不吸烟不饮酒的女性后代(P < 0.0001)。研究结果提示该人群平均能量、碳水化合物和蛋白质的摄入是足够的,平均微量元素摄入量也至少达到了平均估计需求量的90%,但是除了钙、维生素D和维生素E,其值仅仅分别达到21%, 15%, 和32%。研究者还发现发育不良儿童脂肪、钙、磷、维生素D、维生素B2/核黄素、维生素B12(营养摄入通常来自于牛奶)摄入量低于正常儿童(P < 0.05)。当排除低出生体重儿童后发现,钙、维生素D和维生素B2/核黄素摄入量依旧显著降低(P < 0.05)。HAZ在习惯喝牛奶的儿童中高于不喝牛奶的孩子(P = 0.003)。

研究结果表明,该研究人群中可能因为断奶后牛奶摄入量低而导致钙和维生素D摄入量不足,进而影响该人群的生长发育,导致发育不良的情况出现。

原始出处:

van Stuijvenberg ME, Nel J, Schoeman SE, Lombard CJ, du PLM, Dhansay MA. Low intake of calcium and vitamin D, but not zinc, iron or vitamin A, is associated with stunting in 2- to 5-year-old children. Nutrition. 2015. 31(6): 841-6.

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    2016-02-25 lmm397
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    2016-02-16 mengli1984

    钙还是很重要的

    0

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    2015-05-17 huaxipanxing

    看看

    0

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