Calcium absorption in infants and small children: methods of determination and recent findings.

Calcium absorption in infants and small children: methods of determination and recent findings.
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DOI:
10.3390/nu2040474
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发表时间:
2010-04
期刊:
影响因子:
5.9
通讯作者:
Abrams SA
Abrams SA
中科院分区:
医学2区
文献类型:
--
作者:
Abrams SA

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确定钙的生物利用度对于确定膳食钙需求量很重要。在婴儿和幼儿中,以前进行的质量平衡研究已很大程度上被基于稳定同位素的研究所取代。该技术的一个主要优点是能够使用相对较短的 24 小时尿液采集来评估钙吸收,而无需采集多个血液样本或粪便。这些研究的结果表明,母乳和现有的基于牛奶的婴儿配方奶粉之间的钙吸收效率差异相对较小。对于采用西方饮食中典型的钙摄入量的年龄较大的儿童来说,钙的吸收足以满足骨矿物质增长的需求。
Determining calcium bioavailability is important in establishing dietary calcium requirements. In infants and small children, previously conducted mass balance studies have largely been replaced by stable isotope-based studies. The ability to assess calcium absorption using a relatively short 24-hour urine collection without the need for multiple blood samples or fecal collections is a major advantage to this technique. The results of these studies have demonstrated relatively small differences in calcium absorption efficiency between human milk and currently available cow milk-based infant formulas. In older children with a calcium intake typical of Western diets, calcium absorption is adequate to meet bone mineral accretion requirements.
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