>>51859528Its practical from certain perspectives. You just have to eat "most of an animal" and some countries still have bone based foods.
There is areas where it's reasonable; just not any that match the lifestyle of modern man. Meat only isn't exactly sustainable from the perspective of massive groups.
Humans are omnivores for a reason; and its convenience. The human body however expects atleast some meat as you'd expect from a higher end animal; you don't get smart to eat grass.