The Energetically Efficient Show

Can You Fast for 5 Days and Still Build Muscle? My Experiment Results Will Shock You

Kristin Rowell

Can you really lose body fat, gain lean muscle, and feel incredible—all while not eating for five days?

In this episode, Kristin dives deep into the science and strategy behind long-term fasting and how it can enhance lean muscle rather than deplete it. After conducting two 5-day fasts—including one she carefully structured with strength training, amino acid supplementation, and ketosis tracking—Kristin shares her exact process, mindset, and results.

Tune in to hear:

  • Why fasting doesn’t automatically lead to muscle loss
  • How to get into deep ketosis for optimal cellular healing
  • What “autophagy” is and why it’s crucial for longevity
  • The exact protocol Kristin followed during her 5-day fast
  • How essential amino acids can preserve muscle during fasting
  • Why tracking blood glucose and ketones matters
  • Kristin’s impressive DEXA scan results—fat loss + muscle gain in 5 days
  • The role of resveratrol, cold showers, and molecular hydrogen
  • Why metabolic flexibility is the real key to sustained energy and health

5 Day Fasting Protocol: https://energeticallyefficient.com/5-day-fasting

Watch on Youtube: https://www.youtube.com/@energeticallyefficient

Connect with Kristin:

Work with Kristin: https://energeticallyefficient.com/book-now/

Instagram: https://www.instagram.com/kristin_rowell_

Website: https://energeticallyefficient.com/