Calorie Content (calculated)(ME): 972 kcal/kg, 97 kcal/tray. Purina Bella With Beef is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for maintenance of adult dogs. Calorie Content (calculated)(ME): 996 kcal/kg, 100 kcal/tray. Purina Bella Grilled Chicken Flavor is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for maintenance of adult dogs.