Effect of micronutrient powder (MNP) with a low-dose of iron on hemoglobin and iron biomarkers, and its effect on morbidities in rural bangladeshi children drinking groundwater with a high-level of iron: A randomized controlled trial

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Rahman, S
Lee, P
Raqib, R
Roy, AK
Khan, MR
Ahmed, F
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2019
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Abstract

Micronutrient Powder (MNP) is beneficial to control anemia, but some iron-related side-effects are common. A high level of iron in the groundwater used for drinking may exacerbate the side-effects among MNP users. We conducted a randomized controlled trial examining the effect of a low-dose iron MNP compared with the standard MNP in children aged 2-5 years residing in a high-groundwater-iron area in rural Bangladesh. We randomized 327 children, who were drinking from the “high-iron” wells (≥2 mg/L), to receive either standard (12.5 mg iron) or low-dose iron (5.0 mg iron) MNP, one sachet per day for two months. Iron parameters were measured both at baseline and end-point. The children were monitored weekly for morbidities. A generalized linear model was used to determine the treatment effect of the low-dose iron MNP. Poisson regressions were used to determine the incidence rate ratios of the morbidities. The trial was registered at ISRCTN60058115. Changes in the prevalence of anemia (defined as a hemoglobin level < 11.0 g/dL) were 5.4% (baseline) to 1.0% (end-point) in the standard MNP; and 5.8% (baseline) to 2.5% (end-point) in the low-dose iron MNP groups. The low-dose iron MNP was non-inferior to the standard MNP on hemoglobin outcome (β = -0.14, 95% CI: -0.30, 0.013; p = 0.07). It resulted in a lower incidence of diarrhea (IRR = 0.29, p = 0.01, 95% CI: 0.11-0.77), nausea (IRR = 0.24, p = 0.002, 95% CI: 0.09-0.59) and fever (IRR = 0.26, p < 0.001, 95% CI: 0.15-0.43) compared to the standard MNP. Low-dose iron MNP was non-inferior to the standard MNP in preventing anemia yet demonstrated an added advantage of lowering the key side-effects.

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Nutrients

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11

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11

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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

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Food sciences

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Nutrition and dietetics

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Rahman, S; Lee, P; Raqib, R; Roy, AK; Khan, MR; Ahmed, F, Effect of micronutrient powder (MNP) with a low-dose of iron on hemoglobin and iron biomarkers, and its effect on morbidities in rural bangladeshi children drinking groundwater with a high-level of iron: A randomized controlled trial, Nutrients, 2019, 11 (11), pp. 2756-2756

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