Your Body is Burning Carbs, NOT Fat Cells (here’s how to tell)
Decode Your Metabolism: Knowing When You Burn Fat Versus Carbs
Discover the physiological signals that instantly reveal whether your body is utilizing fat or carbohydrates for fuel. Mastering these indicators helps you optimize daily energy and workout performance.
Short Summary
- You can feel—or observe—when your body shifts from fat oxidation to carbohydrate oxidation, typically signaled by increased breathlessness.
- Carbohydrate consumption drastically prioritizes glucose use, as insulin directly inhibits fat release via hormone-sensitive lipases.
- Stress is a powerful metabolic switcher, rapidly inducing cortisol release that triggers glycogen use over fat burning.
- Optimal fat burning correlates with better network stability in the brain, offering improved fluid intelligence and processing speed.
- The crossover point, where fat use declines and carb use accelerates, often occurs between 55% and 75% of maximum exertion.
This overview explains the science of substrate utilization, focusing on the two major determinants: energy demand and oxygen availability. Learn the specific physiological signs—from breathing patterns to mental clarity—that indicate whether you are tapping into stored fats or readily available carbohydrates for immediate energy needs.
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Top Comments (10)
Trying to lose a lot of weight, and I'm already down about 45-50lbs. Trying to maintain my metabolism and encourage fat burning as much as I can. Your videos have helped!
Thanks for the vid as always, see you tomorrow
This was a pretty interesting video. I’m pondering what we do with this info. That would make an interesting follow up video.
Here for the Tomtent.
Here for TDL rhythm
Appreciate the next level of nuance and explanatory 🙌🏼
8:35 "you'd have to be eating carbs constantly" ... this reminds me of videos of the norsman thriatlnon
Mah man - here's my comment for the algorithm. Love the content
Just writing at least seven words for the algorithm :) . Thank you for your content. It helps a lot
Here for the algorithm. Thank you, Thomas!
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Top Comments (10)
Trying to lose a lot of weight, and I'm already down about 45-50lbs. Trying to maintain my metabolism and encourage fat burning as much as I can. Your videos have helped!
Thanks for the vid as always, see you tomorrow
This was a pretty interesting video. I’m pondering what we do with this info. That would make an interesting follow up video.
Here for the Tomtent.
Here for TDL rhythm
Appreciate the next level of nuance and explanatory 🙌🏼
8:35 "you'd have to be eating carbs constantly" ... this reminds me of videos of the norsman thriatlnon
Mah man - here's my comment for the algorithm. Love the content
Just writing at least seven words for the algorithm :) . Thank you for your content. It helps a lot
Here for the algorithm. Thank you, Thomas!