What Happens in Your Body During a Fast (First 48 Hours Explained)
About this episode
Coach Lisa explains the physiological processes that occur in the body during the first 24–48 hours of fasting.
Fasting is not a switch — it's a sequence. Episode #258 🎙️ In this episode, Coach Lisa breaks down what's really happening in your body during the first 24–48 hours of fasting. From glycogen depletion to fat burning and gluconeogenesis, Lisa explains why fasting can feel slow or frustrating at first — especially for newer fasters — and why consistency is what helps the body become more metabolically flexible over time. This episode walks through the physiology of fasting in a practical, easy-to-understand way so you can better understand what your body is doing and trust the process. 👉 What you'll learn: • What the body uses for fuel first during a fast • Why fat burning doesn't happen immediately • How glycogen depletion works • What gluconeogenesis actually is • Why low carb eating supports fasting • How movement helps accelerate the switch to fat burning • Why consistency matters more than dramatic fasts ⏱️ Timestamps 00:00 — Why fasting is a sequence, not a switch 00:26 — Why the first 48 hours can feel frustrating 01:58 — Why consistency matters for metabolic flexibility 02:39 — What is the body actually using for fuel first? 04:26 — Why doesn't fat burning happen straight…
More episodes of The Fasting Method Podcast
- Alcohol, Carbs and Your CGM: What the Flat Line Is Really Telling You
- You Don't Need a Perfect Summer
- Staying Steady Through Summer
- New To Fasting? Here's What's Normal
- Meditation, Breathing & The Power of the Pause
- Fasting But Not Losing Weight? Here's Why
Explore listener stats, chart rankings, contacts and more on the The Fasting Method Podcast podcast page.