transitioning to big-time carbohydrate diets

Obviously things changed when we began to depend upon agriculture as the main source of our daily food. When bread not fish or a rabbit steak became the staff of life.

We did not suddenly go from being healthy to the way we are now, of course. Farmers depend upon their crops for most of their food, but most farmers have always been hunters when they had the time. For most of the last 10,000 farming and hunting have co-existed as a source of food.

This is not much true now due to increased human populations decreasing the amount of wild food available, but I'm sure it's still true in areas of Africa and South America and scattered parts of Asia where there's still significant sources of wild protein.

It's not much true for most of us living in the developed world. So we depend upon carbohydrates, and highly refined ones at that.

Not fruit and vegetables that have the fiber to keep our insulin levels relatively low, as well as antioxidants, vitamins and minerals -- but white bread, spaghetti and so on.

Not to mention sugar-based foods from candy bars to soda.