You have to remember that 99% of pet food is made from the *waste* of human production, so nothing is going to be perfect.Minka, what about a food like this one http://www.amazon.com/Instinct-Grain-Free-Chicken-Natures-12-1-Pound/dp/B000GLON6U/ref=sr_1_1?ie=UTF8&qid=1357911013&sr=8-1&keywords=cat+food+instinct+chicken+meal
I've heard it's a good brand but has chicken meal as the first ingredient and in the title!
Chicken meal will only contain chicken, but it will be rendered, which means it can contain 4D chickens, but not any another kind of animal. It may also contain pieces of packaging from the food. This applies to *Any and All* foods that say chicken meal on them though.
Out of the brands, Nature's Variety is in the top ones, and I highly recommend it.