Vitax Extreme Fat Burn beans and peanuts are part of agriculture that was not available during the Paleolithic era. Moreover, all meat is not accepted in the Paleo plan. Only grass fed meat is an acceptable component of the diet.The reason why there is such skepticism about the Paleo diet is that many of these diet fanatics insist that hunter-gatherers were not affected by diseases and plagues that killed off much of the population during later eras. However, many scientists attribute the lack of disease to other factors.