Is Fasting Actually Worth It?

Is Fasting Actually Worth It?

From Live Lean TV with Brad Gouthro by Brad Gouthro

March 9, 2026 · 12 min

About this episode

This episode explores the science behind fasting and its effects on fat loss, muscle retention, and longevity.

Is fasting actually worth it for fat loss, muscle retention, and longevity? In this science-backed breakdown, I explain intermittent fasting, autophagy, AMPK, mTOR, and whether fasting helps or hurts muscle growth. ► Free 7 Day Trial To My Workout App: https://www.liveleantv.com ► Live Lean Body Quiz: https://www.liveleantv.com/quiz ► Free 7 Day Meal Plan And Recipes: https://www.liveleantv.com/free-stuff 🔎 Video Timestamps: 00:00 Is Fasting Worth It? 00:44 AMPK vs mTOR Explained 01:51 Autophagy Explained 02:50 Fasting Benefits Hour by Hour 04:16 Does 16/8 Intermittent Fasting Actually Work? 05:53 What Happens After A 24 Hour Fast? 06:57 36 Hour Fast Pros & Cons 08:13 Alternate Day Fasting 09:16 Does Fasting Kill Muscle? 10:19 Do You Need to Fast for Longevity? 👉 If you want more science-backed strategies to stay lean, strong, and athletic year-round, subscribe to Live Lean TV: https://www.youtube.com/liveleantv 🔥 Watch Next: If you enjoyed this video, check out this one next: Best Sleep Products for Deep Sleep (Science-Backed & Tested): https://youtu.be/o-zPyQX1CKg Check Out Our Top Videos! https://www.youtube.com/playlist?list=PLnZwGwF1PkMbBv3R7mJKrqSlMc4lR0XEr Read the blog…

People in this episode

Host: Brad Gouthro

Topics covered

  • fasting
  • fat loss
  • muscle retention
  • longevity
  • intermittent fasting
  • autophagy
  • AMPK vs mTOR

Keywords

  • fasting
  • intermittent fasting
  • autophagy
  • muscle growth
  • AMPK
  • mTOR
  • fat loss

Mentioned in this episode

Organizations: Live Lean TV

Products: Workout App, Meal Plan And Recipes

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