Guava With An Institutional Supplementary Meal Improves Iron Status Of Preschoolers: A Cluster-Randomized Controlled Trial
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES(2021)
摘要
The Integrated Child Development Services of India provides Supplementary Nutrition Program (SNP) to preschoolers. Using this platform, the current study examined the impact of diversifying a cereal/pulse-based SNP-meal with guava on iron status and cognitive development among 24-48 months old children. A three-arm, nonblinded, cluster-randomized controlled trial (CTRI/2014/09/004983) included 399 beneficiaries from 28 preschools in 16 villages in Telangana state, India. The villages were randomly assigned to receive 25 g of guava (guava group (GG)), banana (banana group (BG)), or cucumber (cucumber group (CG)) along with a SNP meal for 140 days. Nutrient biomarkers (iron status, plasma vitamin C, vitamin B-12, and folate), cognitive development, anthropometric indicators (WAZ, HAZ, and WHZ), and morbidity were assessed at baseline and endline. A linear mixed model and a generalized estimating equation were applied to compare changes in outcomes across the groups. All outcome variables were comparable across groups at baseline. The iron to vitamin C molar ratio improved in the GG from 1:1.4 to 1:12 but remained unaltered in control groups. Higher hemoglobin (P = 0.002), serum ferritin (SF; P < 0.001), vitamin C (P = 0.047), and lower soluble transferrin receptor (sTfR; P < 0.001) causing decreased prevalence of iron deficiency (ID) (P = 0.003) were observed in the GG compared with BG and CG. Prevalence of acute respiratory infection (ARI) was lower in the GG (P = 0.035) versus controls. No impact was observed on cognitive development or growth. Thus, diversifying a cereal/pulse-based meal with guava increased meal vitamin C content, thereby reducing ID and ARI-related morbidity. This approach represents a valid and scalable strategy to address ID among young children.
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关键词
iron status, preschoolers, guava, supplementary meal, morbidity, growth and development
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