Superpremium grade contain natural meat, fish and vegetable components, the percentage of synthetic additives is minimal or absent.

Most canned dog and cat used to be inspected by the FDA! Major reason during the great Depression it was one of the only food(s) that some could come by, acquire, and sometimes afford!

Ive always wondered about pets food also, and i haven't had a pet since i was in my teens

It's all about extending the shelf life of the food products. And minimizing the number of recalls on a product. To management it makes good economical sense to use these additives.