Are Meat By-Products Bad? or ... Good?

Meat by-products aren't bad, but they certainly aren't the most nutritious part of the animal either. Chicken feet and stuff aren't bad for your dog, but they just don't provide the protein and fat that actual meat does. Meat meal quite likely contains by-product since it's basically just a ground up animal, bones and all, which is fine, but there's MEAT there, too. It may not be the choiciest slices of meat, but it's better than none, which is what straight by-product pretty much is.