Having such a great interest in living a healthy lifestyle the way our bodies have evolved to live, I often look at the many sites touting "Paleo".   What strikes me is that so many people are relying upon a group concept of just what "Paleo" is.  Our modern bodies and brains evolved over many thousands of years to get to this point.  For the last few thousand years, our societies have begun to flourish as well.  The physical evolutionary process is painfully slow in comparison to how our societal interactions have changed, particularly in the last few hundred years, and things seem to only be accelerating.  Our physical bodies are struggling to function in modern society, with all of the modern conveniences.  The movement to a "Paleo" lifestyle is, I think, a positive step, as long as we keep it real as to what we need.   Being omnivores, humans have thrived because of a simple fact.  We can subsist, over long periods of time, on whatever the hell we can lay our hands on to eat.  The problem that we run into in modern times, is that we have a 24/7, 365 day a year, virtually unlimited food supply.  The problem is exacerbated by the fact that this food supply is obtainable with virtually no physical effort.  Our daily life requires, for the most part, almost no physical activity.   That is the set-up for obesity, cardiovascular disease, type 2 diabetes, high blood pressure, high cholesterol, many forms of cancer, and many of the other physical ills that befall modern humankind.

     Our old buddy Ogg, the caveman, wasn't obese, because he had to scrounge around for food in order to subsist.  He had to pick fruit, catch critters, walk everywhere, climb, run away from stuff, drag heavy things home, etc.  He couldn't sit down and open a bag of chips with a burger and a coke, downing a quick 1000 calories.  

     Paleo needs to be about his reality.  Eating a LITTLE of modern type foods probably doesn't harm you.  Your body will use whatever it can get.  Eating a LOT of this stuff will make you FAT AND SICK.  

Worry less about what is or isn't "paleo", and more about keeping the consumption down.  Don't beat yourself up over a snack, but keep your main diet as natural as possible, and KEEP MOVING.