Salmon as the #1 Ingredient: 100% real salmon, a highly digestible protein, is the #1 ingredient to promote strong, lean muscles. Clinically Proven DHA: From natural fish oil for smarter, more trainable puppies. Natural Prebiotics: Natural FOS (fructooligosaccharides) works in your dog's digestive tract to support strong defenses. Antioxidants: To support your puppy's immune system. Natural Fish Oil: Natural sources of omega 6 and 3 fatty acids to promote optimal skin and coat health. Only the Good: No fillers, corn, or artificial preservatives. DentaDefense: Clinically proven to reduce tartar by up to 55%.