Just as an FYI there is a difference, according to the FDA, on meat used for humans and that used for animals. I haven't yet found the particular spot that compares them, but there is very clearly a standard on the FDA website about meat used for feeding raw diets to companion animals, which MUST be human grade, or as they put it "Manufacturers who produce raw meat diets should use USDA/Food Safety and Inspection Service (FSIS)-inspected meat that has been passed for human consumption. " and The measures manufacturers can use i nc lude irradiation, participation in USDA's voluntary inspection program, and use of good manufacturing practices such as those used for human foods.
I'm still looking for something official about pet grade ingredients, since all I have is from an unofficial site.
In any case, it does not mean that they didn't just simply use the words "human grade ingredients" without actually using human grade ingredients. It seems the regulations are much more lax for pet food than for human food.
Sharky.. do you happen to know where there's some sort of comparison or something? I've actually been wondering this myself since what I read on the unofficial site gives me reason to worry about what they're using in wet foods.. (I'm a bit paranoid though, hehe).