after cooking, most of that moisture is lost, reducing the meat content to just a fraction of its original weight. and aside from its energy content, this grain is of only modest nutritional value to a dog. aside from the caloric energy it contains, this item is of only modest nutritional value to a dog. animal fat is a generic by-product of rendering, the same high-temperature process used to make meat meals. although it’s a by-product of the beer making …