Purpose: A reduction occurs in levels of some minerals and vitamins due to physiological adaptation during pregnancy, and this situation causes anemia in pregnancy. The aim of the present study was to evaluate the effect of ferritin, vitamin B12 and folate levels on outcomes of pregnancy in 3rd trimester pregnant women. Materials and Methods: This retrospective study included a total of 72 pregnant women in the third trimester of pregnancy. Vitamin and mineral analyses of the patients were applied. Patients were questioned in respect of whether or not iron and vitamin supplements were taken during pregnancy, the mode of delivery and the history of postpartum problems in infant. Results: As the number of children increased, so an increase was seen in the incidence of anemia. Of the mothers of newborns with medical problems, 60% had anemia. There was no statistically significant difference in the mean birth weight according to the presence or absence of maternal anemia. Anemia in pregnant women is defined as hemoglobin level below 11.0 g/dL in the first and third trimester and below 10.5 g/dL in the second trimester. No significant difference was determined in anemia status according to the mode of delivery. No difference in anemia was detected in infants, regardless of whether or not their mothers took vitamin and mineral supplements. Conclusion: Anemia in the third trimester has no effect on the mode or time of delivery, weight and general condition of the newborn. To decide the effect of anemia on the outcome of pregnancy, further studies with more participants are needed.