This episode I discuss the science and practice of fasting also called time-restricted feeding. I review the data on how limiting food intake to specific portions of every 24-hour cycle (or fasting longer) impacts weight loss, fat loss specifically, liver health, mental focus, muscle, longevity and more. I explain how "fasted" is contextual, and relates to blood glucose levels and their downstream effects, and how the depth of fasting can be adjusted with behaviors such as different types of exercise, or with glucose disposal agents. I also discuss the optimal fasting protocol: and both the absolute (non-negotiable) and variable (contextual) features of a fasting/time-restricted-feeding protocol that will allow you to get the most benefits. I also discuss what does and does not break a fast, the effects of fasting on hormones like testosterone and cortisol and on fertility. I also review how different feeding windows of 8 or 10 or 4 hours differentially impact the effects of fasting, and why the classic 8 hour feeding window came to be but also might be ideal. I discuss mechanisms and offer tools to discern the optimal fasting duration and timing for you.   Thank you to our sponsors: <ul> <li>ROKA - <a href= "https://www.roka.com">https://www.roka.com</a> -- code: "huberman"</li> <li>InsideTracker - <a href= "https://www.insidetracker.com/huberman">https://www.insidetracker.com/huberman</a></li> <li>Helix Sleep - <a href= "https://www.helixsleep.com/huberman">https://www.helixsleep.com/huberman</a> </li> </ul>   RETHINK EDUCATION: The Biology of Learning Featuring Dr. Andrew Huberman <ul> <li><a href= "https://youtu.be/Oo7hQapFe3M">https://youtu.be/Oo7hQapFe3M</a></li> </ul>   Our Patreon page: <ul> <li><a href= "https://www.patreon.com/andrewhuberman">https://www.patreon.com/andrewhuberman</a></li> </ul>   Supplements from Thorne: <ul> <li><a href= "http://www.thorne.com/u/huberman">http://www.thorne.com/u/huberman</a></li> </ul>   Social: <ul> <li>Instagram - <a href= "https://www.instagram.com/hubermanlab">https://www.instagram.com/hubermanlab</a> </li> <li>Twitter - <a href= "https://twitter.com/hubermanlab">https://twitter.com/hubermanlab</a></li> <li>Facebook - <a href= "https://www.facebook.com/hubermanlab">https://www.facebook.com/hubermanlab</a> </li> <li>Website - <a href= "https://hubermanlab.com">https://hubermanlab.com</a></li> <li>Newsletter - <a href= "https://hubermanlab.com/neural-network">https://hubermanlab.com/neural-network</a> </li> </ul>   Links: <ul> <li>Comprehensive Review On Fasting In Humans: <a href= "https://bit.ly/3BwIyd7">https://bit.ly/3BwIyd7</a></li> </ul>   Timestamps: <ul> <li>00:00:00 Introduction, Blood Glucose & Mortality, Mice Vs. Humans</li> <li>00:06:02 Sponsors: Roka, InsideTracker, Helix</li> <li>00:09:42 Neuroplasticity Protocols & Online Lecture <a href= "https://youtu.be/Oo7hQapFe3M">https://youtu.be/Oo7hQapFe3M</a> </li> <li>00:11:20 Feeding, Fasting, Performance</li> <li>00:13:50 Calories-In, Calories-Out (CICO); Perfect Diets</li> <li>00:19:48 Feeding-Induced Health Conditions </li> <li>00:25:33 Time Restricted Eating: When We Eat Is Vital</li> <li>00:29:45 The Eight Hour Feeding Window </li> <li>00:31:26 Feeding Deep Into the Night Is Bad (In Humans)</li> <li>00:36:33 Liver Health</li> <li>00:39:45 Time Restricted Feeding Protocol: Rules</li> <li>00:41:35 When to Start & Stop Eating</li> <li>00:45:38 Gastric Clearance, Linking Fasting to Sleep</li> <li>00:52:35 Effects of Specific Categories of Food</li> <li>00:55:40 Precision In Fasting: Protocol Build</li> <li>00:59:30 4-6 Hour Feeding Windows</li> <li>01:03:08 Protein Consumption & Timing for Muscle</li> <li>01:08:13 How to Shift Your Eating Window</li> <li>01:13:20 Glucose Clearing, Exercise & Compounds</li> <li>01:22:37 Blood Glucose: Monitoring, mTOR & Related Pathways</li> <li>01:27:40 Gut Health: Fasting, Clock Genes and Microbiota</li> <li>01:29:15 Non-Alcoholic Fatty Liver </li> <li>01:32:00 Effects of Fasting on Hormones: Testosterone, Cortisol</li> <li>01:38:40 Fertility</li> <li>01:41:50 8-Hour Feeding Window: Weight Loss Without Calorie Counting</li> <li>01:43:20 Eating Every-Other-Day </li> <li>01:45:29 Adherence</li> <li>01:47:15 Mental Focus & Clarity</li> <li>01:49:12 Enhancing Weight Loss from Body Fat: Hepatic Lipase</li> <li>01:53:15 What Breaks a Fast? Rules & Context</li> <li>01:58:50 Artificial Sweeteners, Plant-Based Sweeteners</li> <li>02:01:42 Glucose Clearing II, Cinnamon, Acidity, Salt</li> <li>02:06:42 My Circadian Clock, Zero-App </li> <li>02:08:20 Odd (But Common) Questions</li> <li>02:09:23 Effects of Sauna & Dehydration on Blood Glucose</li> <li>02:11:12 The Ideal Fasting Protocol </li> <li>02:24:00 More Resources, Ways to Support Us, Supplements</li> </ul> Please note that The Huberman Lab Podcast is distinct from Dr. Huberman's teaching and research roles at Stanford University School of Medicine. The information provided in this show is not medical advice, nor should it be taken or applied as a replacement for medical advice. The Huberman Lab Podcast, its employees, guests and affiliates assume no liability for the application of the information discussed.   Title Card Photo Credit: Mike Blabac - <a href= "https://www.blabacphoto.com">https://www.blabacphoto.com</a>

Effects of Fasting & Time Restricted Eating on Fat Loss & Health | Episode 41

Huberman Lab discusses neuroscience: how our brain and its connections with the organs of our body control our perceptions, our behaviors, and our health. We also discuss existing and emerging tools for measuring and changing how our nervous system works. Dr. Andrew Huberman is a tenured Professor of Neurobiology and Ophthalmology at Stanford School of Medicine. His laboratory studies neural regeneration, neuroplasticity, and brain states such as stress, focus, fear, and optimal performance. For more than 20 years, Dr. Huberman has consistently published original research findings and review articles in top-level peer-reviewed journals, including Nature, Science, Cell, Neuron, and Current Biology. He is a regular member of several National Institutes of Health review panels and a Fellow of the McKnight Foundation and the Pew Charitable Trusts. Dr. Huberman regularly consults for technology development companies, professional athletic organizations, and various units of U.S. and Canadian Special Operations.