One of the many arguments proposed in favor of fasting is that it's our "default mode". Only in the last century have we all transitioned to a 3 meal a day paradigm, and only in the last 50 years we started to heavily snack as we do today, going up to 5.7 meals per day.

Various books like "The Obesity Code" and "The Fasting Method" mention how our hunter gatherer ancestors would sometimes go days or weeks without food. But now I just realized this - how did they manage without electrolytes?

I really doubt pleistocene hunters would gather salt to make caveman keto juice when they went on long periods without any successful hunting. So how did they manage it? 2 days of water fasting without electrolytes make me miserable, so how did they do it?