The dog has evolved as a carnivore, with a natural need for nutrition with varied fresh meat and fish supplemented with small amounts of vegetables, fruits and grasses. Acana Heritage is made largely from nutrients naturally present in its ingredients. Acana Heritage Adult Large Breed Dog consists of 60% fresh meat and fresh fish; free-range chicken and wild-caught flatfish. Also, this diet is low in carbohydrates and calories to help control the dog's weight. This can help reduce stress on the joints. Adult Large Breed Dog is suitable for large breed dogs (over 25 kg). For adult dogs of smaller breeds, there is Acana Adult Small Breed Dog Heritage.