the crap that is put into the most of the dog/cat food may be 30% by weight, yet it isn't a 30% of "all meat products" - because it isn't "meat product", it is "by product" like hoofs, beaks, bones, some internal organs nonconsumable by humans , etc... which at best would be processed into chicken/cattle food (and which doesn't make for good chicken/cattle food) or would be just thrown away.