[not_a_moth]

I hear your perspective.

The evolutionary angle isn't the reason why I believe fasting is a good idea - it's just a rebuttle to "there's no way you function well while fasting"... of course you can, it was likely the MO for millions of years of modern human evolution (or 100+ M years for mammals). It's as natural to fast as it is to fornicate.

Rather, my reasons for fasting come from the scientific literature, centered around autophagy, insulin control, sirtuin activation, visceral (organ) fat depletion, and troves of clear lab test results of benefits (albeit most on non human mammals).

Based on many comments here I think folks just haven't caught up with the longevity research of the last 3-4 years.

[nverno]

From what I've read, this "evolution" argument doesn't seem to hold much weight. If you take other apes as examples, they tend to eat much more, and more regularly than modern humans. Modern hunter-gatherer tribes do as well. So, I don't think there is reasonable evidence that our ancestors normally followed a feast-and-starve diet.