Dry fasting: a powerful, ancient healing practice — now supported by science

Dry fasting (no food, no water) is the most powerful and ancient form of fasting – practiced for deep cellular renewal, inflammation reset, and immune support. Dr. Tallis Barker (D.Phil., Nat.Dip.) offers expert guidance on integrating dry fasting into broader fasting protocols, based on extensive experience and a scientific, holistic approach.

Dry fasting — also known as absolute fasting — involves abstaining from both food and water for a set period. Though it has deep roots in traditional healing systems, modern science is beginning to explore its effects on autophagy, inflammation, and metabolic health.

Learn more

If you’re looking for in-depth articles, personal experiences, and a grounded, expert approach to dry fasting, all content from this site has now moved to our sister site:

Explore the Dry Fasting articles on WaterFasting.org

Looking for support and guidance?

Dry fasting is an advanced practice that requires careful preparation, clear intention, and post-fast integration. If you’re considering a dry fast — whether for healing, spiritual growth, or metabolic reset — I now offer dedicated dry fasting coaching based on two decades of experience with extended fasting protocols.

Learn more about Dry Fast Coaching here

About Dr. Tallis Barker

Portrait of Dr. Tallis Barker, international water fasting coach and Oxford-educated naturopath, author of waterfasting.org

I’m Dr. Tallis Barker (D.Phil., Nat.Dip., NA.Dip.), a leading water fasting coach, associate naturopath, and certified nutrition advisor with academic roots at Harvard and Oxford. My approach combines scientific insight with deep experiential knowledge of both water and dry fasting. I’ve guided thousands of clients worldwide in safely accessing the transformational power of fasting.

Whether you’re fasting for health, emotional resilience, or spiritual clarity, I invite you to learn more, read freely, and connect when you’re ready.

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Questions?

Use the contact form on WaterFasting.org or reach out via email to discuss your goals or request a consultation.

Disclaimer

The information on this website is for educational purposes only and does not constitute medical advice. Dry fasting is a serious practice and may carry risks if undertaken without proper preparation or supervision. Always consult a qualified medical professional before beginning any fasting protocol, especially if you have underlying health conditions or are taking medication. Coaching services offered by Dr. Tallis Barker (D.Phil., Nat.Dip., NA.Dip.) are intended to support personal exploration and are not a substitute for professional medical care.