Double-blind cluster randomised controlled trial of wheat flour chapatti fortified with micronutrients on the status of vitamin A and iron in school-aged children in rural Bangladesh

Ahmed S. Rahman, Tahmeed Ahmed, Faiz Ahmed, Mohammad S. Alam, Mohammad A. Wahed, David Allen Sack

Research output: Contribution to journalArticle


Food fortification is a cost-effective and sustainable strategy to prevent or correct micronutrient deficiencies. A double-blind cluster (bari) randomised controlled trial was conducted in a rural community in Bangladesh to evaluate the impact of consumption of chapatti made of micronutrient-fortified wheat flour for 6 months by school-aged children on their vitamin A, haemoglobin and iron status. A total of 43 baris (group of households) were randomly selected. The baris were randomly assigned to either intervention or control group. The intervention group received wheat flour fortified with added micronutrients (including 66mg hydrogen-reduced elemental iron and 3030μg retinol equivalent as retinyl palmitate per kilogram of flour), while the control group received wheat flour without added micronutrients. A total of 352 children were enrolled in the trial, 203 in the intervention group and 149 in the control group. Analyses were carried out on children who completed the study (191 in the intervention group and 143 in the control group). Micronutrient-fortified wheat flour chapatti significantly increased serum retinol concentration at 6 months by 0.12μmolL-1 [95% confidence interval (CI): 0.06, 0.19; P

Original languageEnglish (US)
Pages (from-to)120-131
Number of pages12
JournalMaternal and Child Nutrition
Publication statusPublished - Dec 1 2015



  • Bangladesh
  • Controlled trial
  • Iron
  • Micronutrient fortification
  • School-aged children
  • Vitamin A

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Obstetrics and Gynecology
  • Pediatrics, Perinatology, and Child Health
  • Nutrition and Dietetics

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