Some advantages to feeding natural food; When fed raw the stool will be - of what it is if the dog is fed kibble. It's very well formed and easy to clean up. It also smells much less. I believe the dogs have a reduced risk of bloat when raw fed. Feeding raw is cheaper than good quality kibble and just as easy/convenient and more readily available. Many diseases are avoided because the dog is not consuming carbohydrates (grains) which are present in large quantities as filler in commercial dog foods.
I believe that the dog should be the food processor as much as possible. The dogs satisfy a lot of innate necessities working on their food. I believe dogs should work during feeding as this is what they were designed to do in the first place. Work to get the food and work to consume the food. This makes them healthy psychologically and physically. Since I feed raw I completely avoid the problem of puppies in training chewing stuff around the house. However for most people it's not feasible to toss a cow carcass in their back yard so some butchering is normal. More so for older dogs.
When I researched information on raw feeding I remember that the consensus was that the dogs will not assimilate whole vegetables properly. Vegetables must be broken down and the easiest way to do it for me is with a blender. I do not however feed vegetables. I throw in kelp powder for a few feedings if I notice the dogs are starting to eat grass. A nice substitute that I'd love to feed to my dogs is green tripe but I can't find it around here.
Other than grass I've noticed that my dogs consistently like to eat these little berries that fall from the palm trees. The berries are mostly a hard seed with a thin sweet outer coating. The seeds come through in the stool unchanged.
One other thing that I feed is saltwater fish. My dogs will consume whole fish completely, scales, fins, head and teeth depending on how hungry they are. Mackerel seems to be a favorite as nothing is ever left over. I've even had them eat mole crabs.
Remember a happy dog is a skinny dog.