Medical nutrition therapy is one of the cornerstones of treatment in the management of gestational diabetes. Recently, the American Dietetic Association published nutrition practice guideline for women with gestational diabetes that are evidence-based. This lecture will discuss the recommendations for incorporating medical nutrition therapy in gestational diabetes management, which includes weight gain recommendations, calorie intake, and carbohydrate type, amount and distribution. It will conclude with a discussion on postpartum strategies to prevent type 2 diabetes and the recurrence of gestational diabetes in subsequent pregnancies.