Teri L. Hernandez, PhD, RN, associate dean of research and scholarship in the College of Nursing and professor in the department of medicine and the division of endocrinology, metabolism and diabetes at the University of Colorado Anschutz Medical Campus, agreed that the first line of therapy with gestational diabetes is nutrition. However, Hernandez said, low-carbohydrate diets are not the only approach in gestational diabetes treatment with nutrition.