In article ,
David WE Roberts wrote:

I think the key thing here is the word 'omnivorous'.
Both humans and dogs are omnivores.
Which means that they can tolerate a wide variety of food, both animal and
vegetable.

Yes. But we are omnivores, descended from herbivores, and they are
omnivores, descended from carnivores. So they have somewhat more
requirement for a high-protein diet than we do.

However, they have had tens of thousands of generations of adaptation
(perhaps more) and we have had hundreds of thousands. Both of us have
very different metabolisms from our ancestral species, towards
similar requirements.

Cats, of course, walk by themselves ....


Regards,
Nick Maclaren.