Zignature - Dry Dog Food - Grain Free Zssential Multi Protein - 25LBOverview: Zignature Zssential Formula for dogs is formulated to meet the nutritional levels established by the Association of American Feed Control Officials (AAFCO) Dog Food Nutrient Profiles for all life stages. ANIMAL PROTEIN FIRST Zignature is designed using the nutritional Science backed by the Glycemic Index. Emerging research has hinted that protein may be able to satisfy hunger better than either fats or carbohydrates. Since most dogs are fed