Will Bulsiewicz, MD, MSCI is the award-winning gastroenterologist behind the Instagram account TheGutHealthMD, launched in 2016 to connect with patients and share evidence-based information. Dr. B earned his BS from Vanderbilt University, MS from Northwestern University and went on to receive his MD from Georgetown University School of Medicine. He is board-certified in internal medicine and gastroenterology and is an expert in digestive diseases. He is the author of the New York Times Bestseller, Fiber Fueled, and the soon-to-be-published corresponding cookbook, The Fiber Fueled Cookbook.

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.