Alison Tierney, MS, RD, CD, CSO is a registered dietitian, certified specialist in oncology, and founding member of Orgain’s Nutrition Advisory Board. Alison has a B.A. from the University of St. Thomas and went on to earn a B.S. and M.S. in Dietetics from Mount Mary University. She is the founder of Wholesome LLC, a private nutrition practice focused on preventing, managing and even in some cases reversing chronic disease with recommendations strongly rooted in science-based nutrition, and is also a sought-after speaker and presenter.

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.