Change Your Body's Fat Loss Thermostat & Crack the Hunger Code - With Dr. Jason Fung

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Mar 9, 2026

Dr. Jason Fung, MD and bestselling author known for treating type 2 diabetes and obesity with nutrition and intermittent fasting. He explains the body’s fat thermostat and hormonal drivers of hunger. They cover insulin’s role, why calorie counting often fails, the impact of ultra-processed foods, three types of hunger, environment redesign, and practical fasting strategies.

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INSIGHT

Body Fat Is A Hormonal Thermostat

Body fat is regulated by a biological thermostat (homeostasis) controlled by hormones, not just calories.
Hormones like insulin and cortisol set the thermostat, driving hunger or lowering metabolic rate to restore the set point.

INSIGHT

Insulin And GLP-1 Dictate Storage Versus Loss

Insulin signals the body to store calories as fat and raising insulin causes weight gain independent of willpower.
GLP-1 drugs lower hunger by pushing the thermostat down, showing hormones—not calorie counting—control weight.

INSIGHT

Calories Carry Instructions Not Just Energy

Equal calories produce different hormonal responses; 800 calories from a donut spikes insulin and triggers rapid hunger.
The same 800 calories from eggs/veg keeps insulin low and sustains fullness for hours.

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Is sustainable, natural weight loss possible in a world of crash diets and weight loss medications? On today’s show, you’re going to learn about real, science-backed strategies that you can use to regulate your body’s internal weight regulation system. If you want to reach a healthy, maintainable body weight long-term, this episode is full of actionable insights for you.

Today’s guest, Dr. Jason Fung is a medical doctor and New York Times bestselling author who has helped thousands of people lose weight and prevent disease through clinically proven, natural strategies. Dr. Fung is recognized as one of the first physicians to prescribe the combination of healthy eating and intermittent fasting for patients with obesity. His new book, The Hunger Code, is a complete guide to losing weight in the era of calorie counting, GLP-1 medications, and ultra processed foods.

In this episode you’ll discover:

What your body’s fat thermostat is and how it works. (3:07)
How your hormones influence hunger and satiety. (5:11)
The role insulin plays in regulating hunger. (6:07)
Why counting calories doesn’t work long-term. (11:29)
How hormone shifts during perimenopause can influence weight. (17:48)
Why ultra processed foods contribute to weight gain. (28:06)
The three different types of hunger. (28:38)
How changing your environment can help you lose weight. (38:23)
The problem with conventional weight loss strategies throughout history. (51:00)
Dr. Fung’s three golden rules of weight loss. (53:35)
The best practices for fasting. (1:00:02)

Items mentioned in this episode include:

⁠Themodelhealthshow.com/ourplace⁠⁠ - Upgrade your kitchen with toxin-free cookware and kitchen essentials. Save 10% with code MODEL.
⁠⁠Piquelife.com/model⁠⁠ - Get exclusive savings on Pique’s premium teas, fasting blends, and wellness bundles when you subscribe.
⁠⁠The Hunger Code by Dr. Jason Fung⁠⁠- Learn how to reset your body’s hunger!
⁠⁠The Obesity Code by Dr. Jason Fung⁠⁠ - Read about the secrets to lasting weight loss!
Connect with Dr. Jason Fung⁠ ⁠Website⁠⁠ /⁠ ⁠Instagram⁠⁠ /⁠ ⁠X⁠⁠ /⁠ ⁠YouTube⁠⁠

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This episode of The Model Health Show is brought to you by Our Place and Pique.

Use my code MODEL at⁠ ⁠themodelhealthshow.com/ourplace⁠⁠ for 10% off toxin-free, ceramic coated cookware.

Go to⁠ ⁠Piquelife.com/model⁠⁠ for exclusive savings on bundles & subscriptions on cutting-edge solutions for your head-to-toe health and beauty transformation.