 The omnivorous domestic canine has evolved to metabolize carbohydrates and thrive on a diet lower in protein, and therefore, a vegan diet may be substantial if properly formulated and balanced.Vegetarianism may be defined as the practice of consuming foods that are primarily derived from plants, with or without dairy products, eggs, and/or honey.Veganism is a subset of vegetarianism, in which all animal-derived products are entirely excluded from one's lifestyle, including food, clothing, cosmetics, etc.