Dr. Jockers Functional Nutrition

What Happens if You Fast for 100 Hours (Hour by Hour Breakdown!)

Dr. Jockers Functional Nutrition with David Jockers 2026-01-08

Summary

A detailed hour-by-hour breakdown of what happens in your body during an extended 100-hour fast. Dr. Jockers explains the metabolic shifts, autophagy activation, and physiological changes that occur.

Key Points

  • Hour-by-hour metabolic changes
  • When autophagy kicks in
  • Ketone production timeline
  • Growth hormone and fasting
  • Breaking a long fast safely
  • Who should avoid extended fasts

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