http://www.api4animals.org/facts.php?p=359&more=1
It sounds like the ideal is for them to eat what we eat, if we are eating carefully and organically, and then, add vitamin supplements. It has been easier to open a can, and supplement with Deli Cat which they love. On the other hand, Mandu lived 22 years on bought pet food, and times have changed. Each item we now buy requires education and awareness.