Calcium fortification of breakfast cereal enhances calcium absorption in children without affecting iron absorption
Calcium fortification of breakfast cereal enhances calcium absorption in children without affecting iron absorption
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DOI：
10.1067/mpd.2001.116936
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发表时间：
2001-10-01
影响因子：
5.1
通讯作者：
Liang, L
中科院分区：
文献类型：
--
作者：
Abrams, SA;Griffin, IJ;Liang, L
目的：提供钙强化食品可能是改善儿童钙摄入量的重要组成部分。我们试图确定是否钙添加到谷物将有一个净的积极影响，钙的吸收，而不降低铁的absorption.Methods：27名儿童，6至9岁，每天提供两份（每份30克的谷物）的低（39毫克/服务）或强化（156毫克/服务）含钙谷物产品14天。钙吸收测定通过使用稳定的同位素添加到牛奶（extrademark标记）和钙强化谷物（内在标记）。结果：从强化谷物钙吸收分数几乎是相同的，从牛奶。牛奶中钙的吸收分数与富含钙或低钙的谷物没有显著差异。添加钙强化谷物后，总钙吸收量从215 +/- 45 mg/d增加到269 +/- 45 mg/d（P <0.001）。铁的吸收是相似的，当孩子们收到的钙强化谷物或未强化的cereals.Conclusions：除了适量的钙的谷物产品是有益的钙的吸收，并没有干扰铁的吸收。使用钙强化食品可能被认为是增加儿童钙摄入量的一种实用方法。
Objectives: Provision of calcium-fortified foods may represent an important component of improving the calcium intake of children. We sought to determine whether the addition of calcium to cereal would have a net positive effect on calcium absorption without decreasing iron absorption.Methods: Twenty-seven children, 6 to 9 years of age, were provided two servings per day (30 g of cereal per serving) of either a low (39 mg/serving) or fortified (156 mg/serving) calcium-containing cereal product for 14 days. Calcium absorption was measured by using stable isotopes added to milk (extrinsically labeled) and to the calcium-fortified cereal (intrinsically labeled).Results: Fractional calcium absorption from the fortified cereal was virtually identical to that from milk. Fractional absorption of calcium from milk did not differ significantly when given with enriched or low-calcium-containing cereal. Total calcium absorption increased from 215 +/- 45 mg/d to 269 +/- 45 mg/d with the addition of the calcium-fortified cereal (P < .001). Iron absorption was similar when children received the calcium-fortified cereal or unfortified cereal.Conclusions: The addition of a moderate amount of calcium to a cereal product was beneficial to calcium absorption and did not interfere with iron absorption. Use of calcium-fortified food products may be considered a practical approach to increasing the calcium intake of children.