How to Use Intermittent Fasting to Lose Weight, Live Longer, and Feel Better with Dr. Jason Fung



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Sometimes the most powerful thing we can do is nothing at all. That’s how I like to look at intermittent fasting. 

Embracing planned periods without eating has numerous well-researched benefits for our health and longevity. And it’s not just about weight (though that is one benefit); it’s also about cellular clean-up, which reduces the risk of chronic disease and increases our healthspan in the process. 

Today on The Dhru Purohit Podcast, Dhru talks to Dr. Jason Fung about using intermittent fasting as a tool for optimal health and why dietary advice based on the energy-balance model has only made the obesity epidemic worse. 

Dr. Jason Fung is a physician, author, and researcher. His groundbreaking science-based books about diabetes and obesity, The Diabetes Code, The Obesity Code, and The Complete Guide to Fasting have sold over one million copies and challenged the conventional wisdom that diabetics should be treated with insulin. Dr. Fung is also the co-founder of The Fasting Method, a program to help people lose weight and reverse type 2 diabetes naturally with fasting. His work on fasting has been cited by CNN, Time, The Atlantic, Forbes, The Toronto Star, and many other media outlets. His latest book is The Cancer Code: A Revolutionary New Understanding of a Medical Mystery

In this episode, we dive into: 

  • What role fasting plays when it comes to optimal health and longevity (6:34) 
  • Why autophagy is so important for health and longevity (7:46) 
  • The most important thing for turning on and off autophagy (11:28)
  • Why we age and common things that contribute to it (14:52)
  • How calorie restriction increases longevity (24:34)
  • Calorie restriction vs. fasting (28:11) 
  • The calorie debate (32:07) 
  • Understanding calorie deficit, weight loss, and the energy-balance model (40:12)
  • The problem with the “calories in, calories out” model of weight management (48:04)
  • How Dr. Fung incorporates fasting into his life (53:50)
  • Three key things to focus on for successful behavior change (57:10) 

Also mentioned in this episode:

For more on Dr. Jason Fung you can follow him on Instagram @DrJasonFung, on Twitter @DrJasonFung, on YouTube @drjasonfung, and through his website

For more on Dhru Purohit, be sure to follow him on Instagram @dhrupurohit, on Facebook @dhruxpurohit, on Twitter @dhrupurohit, and on YouTube @dhrupurohit. You can also text Dhru at (302) 200-5643 or click here.

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Wishing you health and happiness,
Mark Hyman, MD
Mark Hyman, MD


Mark Hyman, MD

Mark Hyman, MD is the Founder and Director of The UltraWellness Center, the Head of Strategy and Innovation of Cleveland Clinic's Center for Functional Medicine, and a 13-time New York Times Bestselling author.

If you are looking for personalized medical support, we highly recommend contacting Dr. Hyman’s UltraWellness Center in Lenox, Massachusetts today.


If you are looking for personalized medical support, we highly recommend contacting Dr. Hyman’s UltraWellness Center in Lenox, Massachusetts today.

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