This lifestyle transition also Ketovatru meant that man's food intake was no longer wild, diverse and raw. Instead it was restricted to local foods, produced using new tools and techniques. It also meant that animals, crops and humans were now dwelling in close proximity. Foods that were introduced through agriculture included diary products and other plants which had to be cooked to kill toxins. Such foods (e.g. potatoes, beans Velofel and grains) would simply not have been part of early ancestor's diet.