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Title: The relationship between zinc intake and growth in children aged 1-8 years: A systematic review and meta-analysis
Authors: Stammers, A. L.
Lowe, N. M.
Medina, M. W.
Patel, S.
Dykes, F.
Pérez-Rodrigo, C.
Serra Majem, Luis 
Nissensohn Bondarov, Mariela 
Moran, V. H.
UNESCO Clasification: 32 Ciencias médicas
3206 Ciencias de la nutrición
Keywords: Zink intake
Issue Date: 2015
Journal: European Journal of Clinical Nutrition 
Abstract: BACKGROUND/OBJECTIVES: It is estimated that zinc deficiency affects 17% of the world's population, and because of periods of rapid growth children are at an increased risk of deficiency, which may lead to stunting. This paper presents a systematic review and meta-analysis of the randomised controlled trials (RCTs) that assess zinc intake and growth in children aged 1-8 years. This review is part of a larger systematic review by the European Micronutrient Recommendations Aligned Network of Excellence that aims to harmonise the approach to setting micronutrient requirements for optimal health in European populations ( Searches were performed of literature published up to and including December 2013 using MEDLINE, Embase and the Cochrane Library databases. Included studies were RCTs in apparently healthy child populations aged from 1 to 8 years that supplied zinc supplements either as capsules or as part of a fortified meal. Pooled meta-analyses were performed when appropriate.RESULTS: Nine studies met the inclusion criteria. We found no significant effect of zinc supplementation of between 2 weeks and 12 months duration on weight gain, height for age, weight for age, length for age, weight for height (WHZ) or WHZ scores in children aged 1-8 years.CONCLUSIONS: Many of the children in the included studies were already stunted and may have been suffering from multiple micronutrient deficiencies, and therefore zinc supplementation alone may have only a limited effect on growth.
ISSN: 0954-3007
DOI: 10.1038/ejcn.2014.204
Source: European Journal of Clinical Nutrition [ISSN 0954-3007], v. 69, p. 147-153
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