Bro I think you're getting the hang of LRC - so I have to commend you there. It's always important to entirely re-frame arguments away from having to defend any one central thesis. Hard to lose when everyone is lost in the weeds!
BUT
When I got to intermittent fasting I had to quit. The only randomized, controlled trial on IF in humans showed literally zero effect.
I'm not here to argue with people who believe in magic or just latch onto the latest fads. If it makes you feel good, then by all means, keep doing it - placebo is stronger than anyone can imagine.