[derekp7]

There's also this thing that people are accustomed to eating 3 times a day, on schedule. And if you miss a scheduled meal, bad things happen to your blood sugar. But is this just an artifact of our current abundance? If you look at nature, many carnivores may go several days or more without a meal. Is this also the natural state for humans, and we are just spoiled? Or are humans really in need of getting nutrition every 4 - 6 hours?

[montecarl]

I find that my need to eat frequently is very well correlated with the percentage of calories that I receive from carbohydrates. I used to eat 4-5 times a day to avoid that low blood sugar feeling (light headed and weak). I have switched to a ketogenic diet and get most of my calories from fat. This has had an enormous impact on when I have to eat. I can now, if I have to, skip a meal and not feel like I might pass out.

[ceejayoz]

We, like the other primates, aren't carnivores. Herbivores have to spend tremendous amounts of time grazing. We omnivores land somewhere in the middle.