Wolf: Have you considered Solid Gold, if you want something natural? I know that they now put their food through the rendering process instead of extruding it, and they also don't cook it for as long as they formally did, so it keeps a lot more of the natural nutritiants.

I love this food, I've only fed it to cats, but the dog food is good as well, natural, salt, preservative free, no corn, yadda yadda.