Vitamin A deficiency can cause anemia as the nutrient is essential for hematopoiesis, mobilization of iron store and immunity. Nevertheless, clinical trials endeavored to evaluate the effect of Vitamin A Supplementation (VAS) on hemoglobin concluded inconsistently. | Effect of a single high dose vitamin A supplementation on the hemoglobin status of children aged 6–59 months: Propensity score matched retrospective cohort study based on the data of Ethiopian Demographic and Health Survey 2011