Nutrient intake plays a significant role in the health outcomes of all pregnant women. The controversies in gestational diabetes mellitus (GDM) management include how far to manipulate energy intake, dietary composition (carbohydrates and fats), and gestational weight gain. Medical nutrition therapy (MNT) for women with GDM has been recognized as the cornerstone of therapy because nutritional quality and quantity have an impact on the overall growth and development of the fetus.