Vital Essentials Raw Bar Freeze Dried Raw Duck Hearts Dog & Cat SnackDuck hearts are an excellent source of naturally occuring iron that helps support your pet's immune systema perfect guilt free, single ingredient, raw protein treat for pets that deserve the best. Treat your dog to butcher cut raw protein between meals for a snack that builds strong muscles for more play, naturally supports digestive and oral health, and provides essential nutrients to support your dogs vitality. PROUDLY AMERICAN CRAFTED GRAIN &