Originally Posted by enviroGator
My take on this phenom is that we evolved in a time when carbs were sporadically available in great portions.
We as nomadic people would wander around eating what ever we could. My belief is we probably ate a lot of bugs, leaves, and roots. We also went through hard times where it was difficult to find enough to survive.
But every once and a while, we ran across an apple tree or some such, and our bodies (through evolution) were trained to stay there and eat as much as we could, storing as much as we could in fat to help us through the hard times that were sure to come.
That worked great for most of mans existence, but now most of us in the US don't see periods of hard times and have a constant source of carbs. So the system doesn't shut off without us consciously deciding we need to operate contrary to our evolutionary programming.
I'm in the camp that would argue that our digestive tracts are probably more adaptable than the Paleo types like to contend. I have seen people get fat on 'healthy foods' and get lean and improve their health-markers on 'unhealthy foods.'
It is entirely understandable why the primal would stuff himself with whatever food he could get his hands on, literally not knowing when he'd get to eat again. Unfortunately, we've carried over that practice, even though we know that the next meal is in the pantry and it's microwaveable.