Dr. Liz Lipski holds a PhD in clinical nutrition, is a fellow of the American College of Nutrition (FACN) and holds two board certifications in clinical nutrition (certified nutrition specialist and board certified in holistic nutrition), as well as one in functional medicine (IFMCP). She is a faculty member for the Institute for Functional Medicine and the Metabolic Medicine Institute’s fellowship program and speaks at many other conferences. She has been published in several peer-reviewed journals, including Nutrition in Clinical Practice, Integrative Medicine: A Clinician’s Journal, and Alternative and Complementary Medicine, and has authored chapters in several textbooks as well as several books, including her most recent, Digestive Wellness:Strengthen the Immune System and Prevent Disease Through Healthy Digestion, 5th ed. She has worked in the field of integrative and functional medicine for 40 years.

Dr. Marvin Singh is one of the only triple board-certified Integrative Gastroenterologists in the United States. He specializes in helping his clients regain control of their health and wellness by decoding their personal health blueprint and focusing on developing highly individualized plans to optimize longevity, gut health, and genetic expression. He founded PrecisiONE Clinic for this very purpose. In addition to his practice, he has been a clinical assistant professor at UCLA and University of California, San Diego. He was also an assistant professor and Associate Director of Gastroenterology at Howard Count for John Hopkins University. He is a published author and speaker and enjoys sharing his passion for health with the world.

Jessica Titchenal is a Doctor of Clinical Nutrition, Certified Nutrition Specialist, and certified nutritionist in Washington state. As the Manager of Professional Trainings at the ANA, she has the opportunity to work with practitioners seeking to broaden their knowledge of special topics in personalized nutrition and help individuals transform their health. She is also adjunct faculty at Maryland University of Integrative Health. Jessica received her M.S. in Nutrition & Integrative Health and DCN from Maryland University of Integrative Health.