The effectiveness of interventions such as food fortification for reducing anemia and iron deficiency is often questioned (14) and little information is available on the effectiveness of these strategies implemented through large scale programs. Reliable evidence of the effectiveness of these strategies applied in large-scale programs is needed for planning interventions aimed at reducing the prevalence of iron and zinc deficiencies and anemia in children.This study aims to document the effectiveness on iron and zinc deficiencies,anemia and stunting, in young children of a large-scale program that distributes iron and zinc fortified milk to low income households at subsidized prices.