Introduction: Micronutrients, vitamins and minerals are essential for normal biologic activity. Pregnancy itself can exacerbate micronutrient deficiencies leading to maternal and fetal health consequences. As micronutrients are required in each stage of gestation, their supplementation can significantly reduce many maternal as well as fetal complications. Aim: To examine the potential role of nutritional supplements in preconception period and during pregnancy and the associated maternal and fetal outcome. Methodology: A retrospective study done in the department of obstetrics and gynecology of Ramaiah Medical College and Teaching Hospital, Bangalore. 500 pregnant women were enrolled for the study Results: In the data obtained during the period of study incidence of normal vaginal delivery was 53%, preterm vaginal delivery 9%, C section 38%. Maternal and fetal complications were noted in patients taking irregular treatment. Conclusion: Regular intake of nutritional supplements can help in achieving better maternal and fetal outcome.