This study aimed to evaluate anemia in pregnant women. Before and after the mandatory fortification of wheat and corn flour with iron. Trial Design The study was a retrospective. Data collected from the medical records of hospitals in the state of Rio de Janeiro, Brazil in 1999-2007 the number of pregnant women who participated in the study were divided into two groups of 778 study group 1 (G1) range. time to supplement with iron powder, consisting of 391 pregnant women received prenatal care. And Mr. pregnancies occurred before June 2004, the group 2 (G2) at the time of receiving the supplement flour with iron 387 includes female menstruation occurred after June 2005. The cut is applied. to diagnose anemia is