If your talking animal products/by-products don't forget whey (its in foods you wouldn't think), nasty stuff when your allergic to milk 
I'm not talking about products that come from live animals like milk. Gelatin and rennet come from dead animals, and while they aren't muscle or fat and aren't called meat, they still require the animal to be slaughtered to get them.
Again, I'm not trying to start a veggie vs. carnivore war here, I just like a good discussion and like to find out people's motivations for the choices they make.
Incidentally, I eat meat. Almost every day.
