IRON REQUIREMENTS IN MENSTRUATING WOMEN
IRON REQUIREMENTS IN MENSTRUATING WOMEN
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DOI：
10.1093/ajcn/54.6.1047
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发表时间：
1991-12-01
影响因子：
7.1
通讯作者：
ROSSANDERHULTEN, L
中科院分区：
文献类型：
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作者：
HALLBERG, L;ROSSANDERHULTEN, L
成人和青少年经期妇女的总铁吸收需要量是根据先前发表的经血流失数据计算的；健康非贫血妇女血红蛋白的分布基础铁损失；以及青少年的生长需求。由于目前的计算包括了所有指数变化的影响，成年女性的新铁需求量增加到2.84毫克/天，青少年增加到3.21毫克/天（第95百分位数）。对全膳食铁生物利用度进行了六次独立评估，以将吸收的铁需要量转化为膳食需要量。在没有铁储备的受试者中，估计膳食铁的生物利用度为14%（瑞典饮食）、16%（法国饮食）和16.6%（美国饮食）。当以15%作为单个数字来代表一般西方饮食中铁的最佳长期生物利用度时，成年经期妇女的第95百分位膳食铁需要量为18.9毫克，经期青少年为21.4毫克。
Total-absorbed-iron requirements in adult and teen-age menstruating women were calculated from previously published data on menstrual blood losses; hemoglobin distribution in healthy, nonanemic women; basal iron losses; and growth requirements in teen-agers. Because present calculations included the effect of the variation of all indices, the new requirements for iron were increased to 2.84 mg/d in adult women and 3.21 mg/d in teen-agers (95th percentiles). Six independent estimations of whole-diet iron bioavailability were made to translate absorbed iron requirements into dietary requirements. In subjects with no iron stores, estimated dietary iron bioavailability amounted to 14% (Swedish diet), 16% (French diet), and 16.6% (US diet). When 15% was used as a single figure to represent the optimal, long-term bioavailability of iron in a general Western-type diet, the 95th percentiles of dietary iron requirements were 18.9 mg in adult menstruating women and 21.4 mg in menstruating teenagers.