Hunger Signals with Dr. Jason Fung - Epsiode 2786

Episode 2786 - Vinnie Tortorich speaks with return guest Dr. Jason Fung about managing hunger signals, the effects of GLP-1s, and more.

https://vinnietortorich.com/2026/04/hunger-signals-dr-jason-fung-episode-2786

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Hunger Signals

• Dr. Jason Fung is a highly respected nephrologist and is the author of:

  • His new book The Hunger Code: https://amzn.to/4bQgWD1

  • The Obesity Code : https://amzn.to/4uVxvX1

• “A calorie is a calorie” is not correct. The quality of calories matters to your health. (8:00)
  • What you eat determines what your body does. (11:15)
• There is a limit to how much you should eat, however. (12:00)
  • Natural foods trigger satiety; ultra-processed foods mess with the body's natural signaling hormones.
• There are three types of hunger: homeostatic (physical), hedonic (emotional), and conditioned (social). (17:00)
• Food companies, over the years, have developed ways to keep you eating, even when your body isn’t truly hungry. (27:00)
  • Many foods trigger a conditioned response.
• The term “food noise” is all over the place. Once you get your hormones working properly through low-carb, “food noise” goes away. (31:00)
  • The process isn’t overnight, but it will happen.
• Dr. Fung offers his thoughts on “food noise.” (33:00)
  • So much of our eating today is driven by conditioned responses and activities paired with food.

GLP1s Are Not Magic

• GLP-1 naturally occurs in the body, and certain foods like protein and fiber will trigger it properly in your body.
  • But the medical doses administered pharmacologically are massive and squelch all hunger signals.
• The biggest problem with exogenous GLP-1s is the loss of your body's ability to learn and respond to proper hunger signals. (36:30)
  • Another issue is that it can also dull *everything* else in life, too. (40:00)
  • They are a tool, not a magic bullet.
  • Oftentimes, when a person stops the drug, they often gain even more fat than before. (42:00)
• There is, of course, the concern of muscle loss as well. If you are already fighting sarcopenia and add GLP-1s, there could be serious issues to follow. (43:00)
• Vinnie discusses “eating through” both bariatric surgery and now the GLP-1 meds. (46:00)
• These drugs can be effective, but there is always a cost.
• They discuss the transition Weight Watchers made when it entered the GLP-1 market. (54:00)
• They discuss other peptides and whether or not they are beneficial. (57:00)
  • They discuss other “miracle cure” trends.
• What you *can* do is trust real food! (1:02:00)
• You can find Dr. Fung on YouTube @DrJasonFung https://www.youtube.com/drjasonfung
  • He is also on Instagram and X at @drjasonfung

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