Martelle Esposito is the Public Policy Nutritionist at the National WIC Association (NWA), managing policy, advocacy, and public health projects for the association. In her role, she lobbies Congress for WIC funding and positive policy changes, builds relationships with national partners while representing NWA on several national coalitions and working groups, manages the Go-to WIC Project, and serves as the Project Director for the Community Partnerships for Healthy Mothers and Children (CPHMC) project. Martelle also serves as a Part-Time Faculty Member at the Milken Institute School of Public Health at the George Washington University, teaching Food Policy and Food Systems courses.

Martelle graduated from Davidson College with a BS in Biology and holds an MS in Nutrition with a concentration in Food Policy and Economics from the Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy at Tufts University and an MPH with a concentration in Health Services Management and Policy from the Tufts University School of Medicine. While in school, Martelle worked as a policy intern on several federal nutrition projects including Child Nutrition Reauthorization and the Farm Bill with the Community Food Security Coalition and the Center for a Livable Future at Johns Hopkins University, respectively. In addition, she was a research assistant for early childhood obesity prevention intervention studies with Harvard Pilgrim Healthcare Institute of Harvard Medical School and engaged in a number of healthy, local food access projects.