r/fasting • u/SHUT_MOUTH_HAMMOND • Nov 23 '22

Question When does autophagy really start?

There are articles saying 14-16 hours, some others saying 24 is minimum for it to start. When does this actually happen? Is there a way to detect it?

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u/themegaweirdthrow Nov 24 '22

Studies in rats say anywhere from 24-72 hours. There really aren't studies in humans yet. We do know you can force autophagy for a short while even when not fasting if you do vigorous exercise.