&gt; However, I think a distinction can be made between eating the meat of a herbivore (horses) and eating the meat of a carnivore&#x2F;omnivore (dogs).<p>What distinction would that be?  People eat bear-meat, hogs are at least partially omnivorous, and virtually every food species of fish and seafood is carnivorous.  Or else a carrion-eater, like lobsters.