frugivorous
A lion has 5 times a human's kidney size per pound because
the carnivorous lion has developed these through millenia.
When an animal is terrorized on the way to slaughter,
feeling the electric shocking rods on his flesh, hearing
the screams of his fellows, he secretes massive amounts of
adrenalin. Some of the adrenalin is broken down in cooking,
but enough of the molecule links remain intact that
eating meat is the equivalent of eating the fright, anger,
terror of the animal as he or she is being killed. Not only
is this great stress for the body, but in addition for
emotions assaulted by the terror secretions of the butchered
being.
Over time, this constant ingestion of fragments of the animal's
adrenalin creates adrenal fatigue.