Dr. Marie-Pierre St-Onge is a nutrition and sleep researcher with over two decades of experience. In addition to earning a Bachelor’s, Master’s and Ph.D. in Human Nutrition from McGill University, Dr. St-Onge completed a fellowship at Columbia University and went on to join the New York Obesity Nutrition Research Center and the Institute of Human Nutrition as a Post-Doctoral Fellow. In her current role as an Associate Professor of Nutritional Medicine at Columbia University Irving Medical Center, she conducts research related to foods and their influence on disease risk and continues to focus heavily on sleep and its association with obesity and cardiometabolic risk factors.

Mary Purdy, MS, RDN is an integrative eco-dietitian and nutrition educator with a Master's Degree from Bastyr University, where she is currently adjunct faculty. She has been in clinical practice for over 12 years using a personalized medicine and functional nutrition approach. In addition to being the host of The Good Clean Nutrition Podcast, she had her own podcast, The Nutrition Show, with 100+ episodes, and has authored two books, Serving the Broccoli Gods and The Microbiome Diet Reset. Mary also teaches for other universities and educational platforms, is a nutrition and sustainability adviser for Big Bold Health, and is a sought-after speaker, consultant and community builder working with organizations to create a more sustainable, just and resilient food system. Learn more about Mary at www.marypurdy.co.