• Nutrition · Jul 2014

    Randomized Controlled Trial Comparative Study

    Reducing iron deficiency anemia in Bolivian school children: calcium and iron combined versus iron supplementation alone.

    • Melissa Miranda, Manuel Olivares, Alex Brito, and Fernando Pizarro.
    • Micronutrients Laboratory, Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile.
    • Nutrition. 2014 Jul 1;30(7-8):771-5.

    ObjectiveThe aim of this study was to determine the effect of combined calcium and iron versus single iron supplementation on iron status in Bolivian schoolchildren.MethodsChildren ages 6 to 10 y old (N = 195), were randomly assigned to receive either 700 mg Ca (as calcium carbonate) plus 30 mg Fe (as ferrous sulfate) (Ca + Fe group) or 30 mg Fe (as ferrous sulfate) (Fe group). The doses were administered daily, from Monday to Friday, between meals at school over 3 mo. Iron status was assessed at baseline and after intervention. Additionally, overall nutritional status was assessed by anthropometry and an estimation of dietary intake.ResultsAt baseline, the prevalence of anemia in the Ca + Fe group and the Fe group were 15% and 21.5%, respectively. After 3 mo follow-up, the prevalence of iron deficiency anemia dropped significantly (P < 0.001) to 3% in both groups (χ(2) = NS). Iron dietary intake was within recommended levels, but calcium intake only covered 39% of the Recommended Daily Intake.ConclusionCombined calcium and iron supplementation is equally as effective as single iron supplementation in reducing the prevalence of iron deficiency anemia in Bolivian school children.Copyright © 2014 Elsevier Inc. All rights reserved.

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