Christopher Gardner has a PhD in Nutrition Science and is a Professor of Medicine at Stanford’s School of Medicine. He has been researching the health effects of a plant based-diet and its components for 20 years, primarily with federal (NIH) funding. Recently his nutrition interests have expanded to two new areas. The first is to explore motivators other than health for making positive dietary changes, linking to ongoing social movements around animal welfare, climate change, social justice, and their relationships to food – stealth health. The second is to focus on a food systems approach to dietary improvements that addresses the quality of food provided by schools, hospitals, worksites, food banks and other institutional food settings.