Of course it does; as we all know, the dog is derived from the wolf. A wolf's diet consists mainly of eating small and medium-sized animals in their entirety, i.e. meat, skin, bones and entrails, such as guts and stomach, which when eaten by the dog, the dog also eats the vegetables and fruit on which these animals were fed.
The recommended amount of Naturaldogbarf for each animal is 2% - 3% of body weight in adult dogs, and 8% - 10% of body weight in puppies.