Maternal iron intake at mid-pregnancy is associated with reduced fetal growth: results from Mothers and Children’s Environmental Health (MOCEH) study

Nutrition Journal

Research

Ji-Yeon Lee¹  Ki-Nam Kim¹  Hyesook Kim¹  Namsoo Chang¹  Yangho Kim²  Eun-Hee Ha³  Hyesook Park³  Mina Ha⁴  Yun-Chul Hong⁵  Ji-Yun Hwang⁶ 

[1] Department of Nutritional Science and Food Management, Ewha Womans University, 120-750, Seoul, South Korea;Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, 682-060, Ulsan, South Korea;Department of Preventive Medicine, College of Medicine, Ewha Womans University, 158-710, Seoul, South Korea;Department of Preventive Medicine, Dankook University College of Medicine, 330-715, Cheonan, South Korea;Department of Preventive Medicine, Seoul National University College of Medicine, 110-799, Seoul, South Korea;Graduate School of Education, Sangmyung University, 110-743, Seoul, South Korea;

关键词: Iron;    Pregnancy;    Growth;    Diet;    MOCHE study;   

DOI  :  10.1186/1475-2891-12-38

 received in 2012-03-31, accepted in 2013-03-21,  发布年份 2013

来源: Springer

【 摘 要 】

BackgroundIron supplementation is a common recommendation for pregnant women to prevent iron deficiency during pregnancy. There is an increasing concern about excessive iron consumption as a general iron prophylaxis by pregnant women without any due consideration about their dietary iron intake or iron status. Our present study investigated the association between total iron intake from diet and supplements and fetal growth in 337 pregnant women at mid-pregnancy in South Korea.MethodsIron intake from diet and supplements was examined by a 24-hour recall method. Subjects were divided into three groups based on tertiles of total iron intake levels. Fetal biometry was assessed by ultrasonography at mid-pregnancy.ResultsAbout 99% of the non-supplement users had iron intake below the recommended nutrient intake (RNI) for pregnant women (24 mg), whereas 64.9% of supplement users had iron intake above the upper level (UL) (45 mg). In the babies of mothers in the third tertile of iron intake (>17.04 mg), biparietal diameter, abdominal circumference, and femur length were lower by 0.41 cm (P =0.019), 0.41 cm (P = 0.027), and 0.07 cm (P = 0.051), respectively, than the babies of mothers in the second tertile of iron intake (11.49 ~ 17.04 mg).ConclusionThese results suggest that excessive maternal iron intake at mid-pregnancy is associated with reduced fetal growth. Iron supplementation for pregnant women should be individualized according to their iron status. Appropriate diet education is needed for pregnant women so that they can consume adequate amounts of iron from food and supplements.

【 授权许可】

Unknown   
© Hwang et al.; licensee BioMed Central Ltd. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.