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Habits and Hustle

Dr. Jason Fung: Why Calories Are Not the Key to Weight Loss

Habits and Hustle

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10 min
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There's a common belief that weight loss is simply about "calories in, calories out" - but according to Dr. Jason Fung, this is actually false and misleading information.

In this bonus episode of the Habits and Hustle podcast, Jen talks with the author of The Obesity Code, a renowned expert on obesity and intermittent fasting, who explains that there is much more to gaining or losing weight than just the number of calories consumed. It's not only about the energy in the food, but critically, it's about what your body does with that energy.

We dive into the complex role of hormones and common myths around calories to make a compelling case for why we need to look beyond overly-simplistic "eat less, move more" advice to understand obesity and weight loss.

Dr. Jason Fung is a New York Times-bestselling author of many books including The Obesity Code and The Diabetes Code. He completed medical school at the University of Toronto and a fellowship in nephrology at UCLA. He is the co-founder of The Fasting Method, a program to help people lose weight and reverse type 2 diabetes naturally with intermittent fasting.

What We Discuss:

  • "Calories in, calories out" overly simplistic
  • Body stores or burns calories based on hormones
  • Different foods have different hormonal effects
  • Insulin drives fat storage; spiked by certain foods
  • Protein: insulin and satiety effects
  • Processed carbs especially fattening
  • Foods' hormonal impacts key, not just calories
  • …and more!


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