Every bag of Nutribyte Endurance food contains primarily novel proteins, fats and carbohydrates to offer a unique diet suitable for most food related allergies and common digestive issues. The very high levels of protein and fat allows for all-day energy, performance and faster muscle building and recovery in all working dogs. This diet may also help to condition dogs that struggle to maintain a healthy lifestyle and ideal bodyweight. This is an All-Lifestage Diet and may be fed to puppies and lactating bitches.