Delivery of iron-fortified yoghurt, through a dairy value chain program, increases hemoglobin concentration among children 24 to 59 months old in northern Senegal: A cluster-randomized control trial

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dc.creatorLe Port, Agnès
dc.creatorBernard, Tanguy
dc.creatorHidrobo, Melissa
dc.creatorBirba, Ousmane
dc.creatorRawat, Rahul
dc.creatorRuel, Marie T.
dc.date2017
dc.date2024-06-21T09:22:51Z
dc.date2024-06-21T09:22:51Z
dc.date.accessioned2026-06-27T15:04:20Z
dc.descriptionBackground Innovative strategies are needed to enhance the nutritional impact of agriculture. Value chain approaches, which use supply chains to add value (usually economic) to products as they move from producers to consumers, can be used to increase access to nutritious foods and improve nutritional status. This study tested whether a dairy value chain could be used to distribute a micronutrient-fortified yoghurt (MNFY) (conditional upon the producer supplying a minimum amount of cow milk/day) to improve hemoglobin and reduce anemia among preschool children in a remote area in Northern Senegal. Methods A cluster randomized control trial was used to compare 204 children (24 to 59 months of age at baseline) from households who received the MNFY coupled to a behavior change communication (BCC) campaign focusing on anemia prevention to 245 children from a control group (receiving BCC only) after one year. Randomization was done at the level of the family concession (households from the same family) (n = 321). Eligible households had a child of the target age and were willing to deliver milk to the dairy factory. Changes in anemia and hemoglobin between groups were assessed using mixed regression models. Key findings Anemia prevalence was very high at baseline (80%) and dropped to close to 60% at endline, with no differences between intervention groups. Hemoglobin increased by 0.55 g/dL, 95%CI (0.27; 0.84) more in the intervention compared to the control group after one year, in models that controlled for potentially confounding factors. The impact was greater (0.72 g/dL, 95%CI (0.34; 1.12)) for boys, compared to girls (0.38 g/dL, 95%CI (-0.03; 0.80)). Conclusion The dairy value chain was a successful strategy to distribute MNFY among pastoralists in Northern Senegal, and increase Hb concentrations among their children. This study is one of the first proofs of concept showing that a nutrition-sensitive agriculture value chain approach can contribute to improved child nutrition in a remote pastoralist population.
dc.identifierhttps://hdl.handle.net/10568/147432
dc.identifier.urihttp://hdl.handle.net/123456789/93680
dc.languageen
dc.publisherPublic Library of Science
dc.relationhttps://hdl.handle.net/10568/148065
dc.rightsOpen Access
dc.sourceLe Port, Agnès; Bernard, Tanguy; Hidrobo, Melissa; Birba, Ousmane; Rawat, Rahul; and Ruel, Marie T. 2017. Delivery of iron-fortified yoghurt, through a dairy value chain program, increases hemoglobin concentration among children 24 to 59 months old in northern Senegal: A cluster-randomized control trial. PLoS One 12(2): e0172198. https://doi.org/10.1371/journal.pone.0172198
dc.subjectanaemia
dc.subjectsupply chains
dc.subjectbiofortification
dc.subjectdeficiencies
dc.subjectmalaria
dc.subjectnutrition
dc.subjecthaemoglobin
dc.subjecttrace elements
dc.subjectchildren
dc.subjectyoghurt
dc.titleDelivery of iron-fortified yoghurt, through a dairy value chain program, increases hemoglobin concentration among children 24 to 59 months old in northern Senegal: A cluster-randomized control trial
dc.typeJournal Article

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Instituto Internacional de Investigación sobre Políticas Alimentarias (IFPRI)