Keto Flex Revised: The Advanced Guide to Metabolic Flexibility, Fat-Burning, and Hormone Health for Every Body at Every Stage

by Ben Azadi

From New York Times bestselling author of Metabolic Freedom and founder of Keto Kamp, a newly updated and revised science-backed guide for long-term fat loss, metabolic healing, and real-life flexibility through advanced keto made simple.

Following the breakout success of Metabolic Freedom, Ben Azadi delivers the next step in his metabolic health revolution with Keto Flex Revised—a clear, customizable, and science-rooted roadmap to long-term fat loss, hormone balance, and cellular healing through the strategic use of ketogenic nutrition and fasting.

Designed for both keto newcomers and experienced biohackers, this updated edition reframes keto not as a rigid diet but as a flexible metabolic tool, guided by Azadi’s signature four-pillar system. With deep roots in ancestral health, Azadi walks readers through the truth about fat-burning foods, how to avoid hidden inflammatory ingredients, and why keto should look different for women, athletes, and anyone dealing with blood sugar, autoimmune, or hormonal challenges.

The book
Personalized plans for achieving metabolic flexibilityGuidance on combining keto, fasting, and carnivore safely and effectivelyHormone-specific protocols (including for cycling, peri-, and post-menopausal women)Tools for testing, troubleshooting, and personalizing your resultsMore than 50 fat-burning recipes and food listsA comprehensive guide to “keto flexing” for sustainable, long-term success
Backed by cutting-edge research and written in Azadi’s accessible, motivational style, Keto Flex Revised empowers readers to take full control of their metabolism—and never diet again.

Audible Audio

Expected publication July 21, 2026

About the author

In 2008, Ben Azadi went through a personal health transformation of shredding 80 pounds of pure fat. Ever since, Ben Azadi, FDN-P, has been on a mission to help 1 billion people live a healthier lifestyle. 

Ben is the author of four best-selling books, Keto Flex, The Perfect Health Booklet, The Intermittent Fasting Cheat Sheet, and The Power of Sleep. Ben has been the go-to source for intermittent fasting and the ketogenic diet. 

He is known as 'The Health Detective' because he investigates dysfunction, and he educates, not medicates, to bring the body back to normal function.  Ben is the founder of Keto Kamp; a global brand bringing awareness to ancient healing strategies such as the keto diet and fasting. 

Ben is the host of a top 15 podcast, The Keto Kamp Podcast; and the fast growing Keto Kamp YouTube channel with over 130,000 subscribers, and TikTok channel with over 145,000 subscribers.

Website: www.benazadi.com 
Instagram: @thebenazadi 
LinkedIn: www.linkedin.com/in/benazadi/
Facebook: www.facebook.com/thebenazadi
YouTube: www.youtube.com/ketokamp
Clubhouse: @thebenazadi
Podcast: The Keto Kamp Podcast