Earlier quoted context omitted.
What millennia of anecdotal evidence? I've heard claims like that before, but never seen the source of any of these claims. Really? In the past it was common not to eat, voluntarily? That seems hard to believe with how central food is to every culture I've ever been exposed to. In fact you are seen as odd if you choose NOT to partake when others are. If this is common knowledge to you it is certainly not for me, whic…
Aren't humans hunter-gathers and not having food for some periods of time has become part of who we are? To me vasting makes total sense, whether it's religious, spiritual or otherwise.
I'm sure though that the tribes/groups that had best access to food were the most successful, so I'd assume that fasting was something to avoid for them, not embrace. I'd be willing to bet that in reality, before the rise of civilization (and expansion to less hospitable climates), that fasting was more uncommon than the general population believes (most modern hunter/gatherer tribes eat pretty well), if food started to get scarce you went and found more. Food isn't really scarce if you live in a good area, and while our species was growing up we lived on very fertile lands.