I feed my boys raw meat as a treat, liver and heart are special favourites. It's what they are built to eat. BUT, I get the meat for them from a local butcher who gets his meat directly from a natural farm. There is no factory farming involved, so my cats are not ingesting the tons of chemicals and drugs they pump into those poor creatures, which are wiped out before we eat the meat by cooking it. For this reason, I wouldn't give my pets raw meat from the supermarket shelf, except in very small amounts.