An impact evaluation of Costa Rica’s national food fortification program was conducted using a one-group pretest-posttest design with data from national surveys and sentinel sites. Reductions in anemia were found among women and children, along with improvements in iron status among children. The authors present a plausible impact pathway linking these benefits to Costa Rica’s mass fortification.
Am J Clin Nutr. 2015 Jan; 101(1):210-7.