Dr. Tallis Barker, D.Phil., Nat.Dip.
Dr. Tallis Barker, D.Phil., Nat.Dip., NA.Dip.is a leading international authority on therapeutic water fasting and the founder of waterfasting.org: the most extensive online source of fact-based information available on the subject. A registered Associate Naturopath, Nutritional Advisor and expert water fasting coach, he has worked one-on-one with over 1000 clients worldwide, empowering people on their journeys through 7-40 day water fasts to heal from a wide range of chronic health issues. Such close clinical work across so many cases has given him an unparalleled knowledge of fasting physiology and symptomatology.
Tallis regularly lectures on therapeutic water fasting and also runs fasting retreats. Last year he published two peer-reviewed research articles which examine how fasting can heal SIBO (Journal of Preventive Medicine and Holistic Health) and Long Covid (Journal of Traditional Medicine and Clinical Naturopathy). With over 15 years of personal fasting experience, he also practises what he preaches – having recently completed a 30-day water fast, which he documented in this video and article.
Tallis originally studied musicologyatHarvard(magna cum laude) and completed hisdoctorate (D.Phil.)atOxford University, where he also lectured for several years. As an accomplished classical pianist, his recordings (available on Spotify and iTunes) reflect the same balance of discipline, sensitivity, and depth that he brings to his work with clients. Tallis is also an avid long-distance trail runner, interested in exploring the physiological similarities between fasting and endurance sports. He is the author of Growing into Being, a book which explores the interplay between personal growth, philosophy, and lived experience, and the host of The Fasting Mind podcast, which discusses the mental, emotional, and spiritual dimensions of fasting. He is married with three grown children.