About this podcast

This episode of the Huberman Lab Podcast, hosted by Dr. Andrew Huberman, delves into the scientific principles and practical applications of fasting, also known as time-restricted feeding. Dr. Huberman meticulously reviews research data on how limiting food intake to specific windows impacts a myriad of health aspects, including weight loss (specifically fat loss), liver health, mental focus, muscle maintenance, and overall longevity. He clarifies the concept of "fasted" states in relation to blood glucose levels and explores how fasting depth can be modulated through exercise or glucose disposal agents. The discussion covers optimal fasting protocols, distinguishing between absolute and variable features to maximize benefits. Listeners will learn what breaks a fast, the hormonal effects (testosterone, cortisol, fertility), and the differential impacts of various feeding windows (e.g., 4, 8, or 10 hours). Dr. Huberman provides mechanisms and actionable tools to personalize fasting duration and timing for individual health goals, while also critically examining the translation of scientific findings from mouse models to humans.