Home What's New The 4 Types of Fasting (and the Phases of Each) – Dr. Jason Fung The 4 Types of Fasting (and the Phases of Each) – Dr. Jason Fung CHWL Mar 14, 2026 comments off Tweet on Twitter Share on Facebook Pinterest This is my first link This is my second link This is my third link 16 8 fasting 24 hour fast autophagy calories in calories out conditioned hunger cortisol extended fasting fasting fasting mimicking diet fat burning food addiction glp-1 gluconeogenesis hedonic hunger homeostatic hunger hormones insulin intermittent fasting jason fung jason fung diet jason fung fasting jason fung interview ketones metabolic flexibility obesity protein the hunger code the obesity code thomas delauer ultra processed foods weight loss