On Sat, 11 Jul 2015 14:05:03 -0400, Mike Duffy
> wrote:

<snip>

>Before agriculture (and territorial boundaries, land ownership, etc.), our
>ancestors ate food without a lot of carbohydrates. Simply stated, our
>regulatory systems (hunger / fat accumulation etc.) were balanced to
>optimize the dangers of accumulating fat versus the danger of starving to
>death. We evolved for thousands of years getting most of our winter
>calories from animal fat, although we would readily eat fruit when it was
>in season, and we constantly sought ways to preserve all types of food for
>the winter.
>
>Complex carbohydrates were/are a blessing and a curse. They provided a
>manner to have an energy source (grains) that could last years without
>going rancid. But the complex carbohydrate while it is being digested
>wrecks havoc on the finely-tuned regulatory system of hormones that makes
>us feel hungry or lay down a layer of fat. We evolved in an epoch of having
>blood sugar levels determined by digestive intake of animal fat, not
>starch.
>
>So now we have a practical epidemic of diabetes, especially amongst people
>who only got away from stone-age diets a few generations ago. (I.e. Inuit,
>Cree, etc.)
>
>I recently lost about 15 kg over the past 6 months. All I had to do was
>stop eating anything white. (Pasta / Potatoes / Bread). For the first few
>weeks, I was ravenously hungry. But after that, when my body system had
>"rebooted", the daily fluctuation in hunger level became less pronounced. I
>feel hungry and eat, but do not feel driven to overeat. I eat as much as I
>want, and I continue to lose weight.

You have it exactly correct. We were never designed for the quantities
of carbs we now consume. They were once a scarce resource, and so our
bodies evolved to make the most efficient use of them (and still does
of course). So when you combine that attribute with easy carb
availability...