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Iron requirements in adolescent females.
J Nutr 2000; 130(2S Suppl):440S-442SJN

Abstract

Adolescence is characterized by a large growth spurt and the acquisition of adult phenotypes and biologic rhythms. During this period, iron requirements increase dramatically in both boys and girls as a result of the expansion of the total blood volume, the increase in lean body mass and the onset of menses in young females. The overall iron requirements increase from a preadolescent level of approximately 0.7-0.9 mg Fe/d to as much as 2.2 mg Fe/d or perhaps more in heavily menstruating young women. These increased requirements are associated with the timing and size of the growth spurt as well as sexual maturation and the onset of menses. The available data on iron intakes in adolescents suggest that adolescent girls are unlikely to acquire substantial iron stores during this time period because intakes may average as little as 10-11 mg Fe/d. The bioavailability from diets in developing and industrialized countries indicates a negative iron balance is likely in many female populations. The low iron stores in these young women of reproductive age will make them susceptible to iron deficiency anemia during pregnancy because dietary intakes alone are insufficient, in most cases, to meet the requirements of pregnancy.

Authors+Show Affiliations

Nutrition Department, The Pennsylvania State University, University Park 16802, USA.

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

10721923

Citation

Beard, J L.. "Iron Requirements in Adolescent Females." The Journal of Nutrition, vol. 130, no. 2S Suppl, 2000, 440S-442S.
Beard JL. Iron requirements in adolescent females. J Nutr. 2000;130(2S Suppl):440S-442S.
Beard, J. L. (2000). Iron requirements in adolescent females. The Journal of Nutrition, 130(2S Suppl), 440S-442S. doi:10.1093/jn/130.2.440S.
Beard JL. Iron Requirements in Adolescent Females. J Nutr. 2000;130(2S Suppl):440S-442S. PubMed PMID: 10721923.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Iron requirements in adolescent females. A1 - Beard,J L, PY - 2000/3/18/pubmed PY - 2000/4/15/medline PY - 2000/3/18/entrez SP - 440S EP - 442S JF - The Journal of nutrition JO - J. Nutr. VL - 130 IS - 2S Suppl N2 - Adolescence is characterized by a large growth spurt and the acquisition of adult phenotypes and biologic rhythms. During this period, iron requirements increase dramatically in both boys and girls as a result of the expansion of the total blood volume, the increase in lean body mass and the onset of menses in young females. The overall iron requirements increase from a preadolescent level of approximately 0.7-0.9 mg Fe/d to as much as 2.2 mg Fe/d or perhaps more in heavily menstruating young women. These increased requirements are associated with the timing and size of the growth spurt as well as sexual maturation and the onset of menses. The available data on iron intakes in adolescents suggest that adolescent girls are unlikely to acquire substantial iron stores during this time period because intakes may average as little as 10-11 mg Fe/d. The bioavailability from diets in developing and industrialized countries indicates a negative iron balance is likely in many female populations. The low iron stores in these young women of reproductive age will make them susceptible to iron deficiency anemia during pregnancy because dietary intakes alone are insufficient, in most cases, to meet the requirements of pregnancy. SN - 0022-3166 UR - https://www.unboundmedicine.com/medline/citation/10721923/Iron_requirements_in_adolescent_females_ L2 - https://academic.oup.com/jn/article-lookup/doi/10.1093/jn/130.2.440S DB - PRIME DP - Unbound Medicine ER -