Compared to those cultures who are physically active without the benefit of carbs is we have weakened our bodies. Our bodies have a hard time burning fat stores because it is so addicted to carbohydrates. This is why obesity is a big concern in this country. High carb addiction also causes diabetes and other insulin resistant illnesses. But carbs are so much easier to process and burn. This addiction is created through time and it can only be cured with time.

I watched a lecture on PBS on the Lewis and Clark expedition. I watched it mainly to see what this group ate as a diet. They ate venison and worked all day until they dropped, ate vennison and worked all day until they dropped. Why were they able to function well on a very high protein diet but we have to have all kinds of carbs, vegetables ( fruit/carbs ) lean meat etc. to be healthy. It is because our bodies have weakened, thanks to high carb acceptance.