Royal Canin Breed Health Nutrition Boxer Puppy Dry Dog Food Helps Support Muscle Development With 28% Protein (Minimum) And L-Carnitine) Supports Digestive Health And Maintains A Balanced Intestinal Flora Contains Prebiotics And An Exclusive Complex Of Antioxidants (Vitamins E And C, Lutein And Taurine) To Help Support Natural Immune Defenses