I also found this definition.http://www.drweil.com/u/Article/P175/
Meat Meal/Dried Animal Digest â€“ This is the dry byproduct of rendered meat. During rendering, all usable animal parts (including fetal tissues from pregnant cows and glandular wastes) are heated in vats and the liquid is separated from the dry meal. Manufacturers then cover the meal with charcoal and label it "unfit for human consumption" before processing it into pet food.
This one doesn't make it sound as good. Here I go with my "raw" banter again.
Rendering, regardless of the meat content, involves cooking the meat. Cooking meat alters the molecular structure of the proteins and minerals in the meat making them difficult to absorb by our cats. Cooking also kills the enzymes in the meat. Cooked meat is relatively usless to our cats and as such the food must be heavily supplimented in order to restore nutritional value.
The link below is one of many refrences to Pottengers studies of cooked vs raw meats in cats. While I don't support these kinds of tests with animals, the results are pretty conclusive. And yes, I know the link says "dogs" but read the article.http://www.netpets.com/dogs/referenc...cookorraw.html
But take everything you read on the internet with a grain of salt.