Proper K-9 nutrition is not related to a Meat-based diet.

The question of proper nutrition is not related to whether or not the diet contains animal products, but rather if it contains sufficient amounts/proportions of a variety of nutrients. According to the National Research Council, (NRC), "Dogs require specific nutrients, not specific feedstuffs." Remember, there is nothing magical about meat. Although dogs have higher protein requirements than humans, hormones/antibiotics founds in many commercial meats, unless explicitly specified, pose a potentially greater risk of disease and cancer for your dog. Moreover, an exclusively meat-based diet may be outright dangerous, given the risk of potential impurities found in many commercial meats as explained. The absence of impurities may make for healthy meal for your dog, but remember, there are other great reasons to not promote the plights of the animal slaughter food production industry: for example, have you considered how world hunger could be ended with vegetarianism? Think about how much grass, or corn (cows by the way, develop intestinal disease as a result of being corn fed, which is the cheapest way to nourish a cow), is required to feed any given cow, before it is finally brought to its brutal death, after having spent its life trampling on its own feces and eating food that makes it ill. The aforementioned changes in temperament can be correlated with the increase of norepinephrine. Dr. Judith J. Wurtman, of MIT notes: "Carbohydrate foods are relaxing, reducing stress and anxiety...Lean meat, in contrast, is one of the foods that stimulates brain chemicals such as Dopamine and norepinephrine, which have log been linked to the fright, flight, or fight reactions..."