Nulo Frontrunner Protein Beef, Barley & Lamb Recipe Dry Adult Dog Food, 23 lb. is specially crafted for dogs that need a high-protein diet to maintain lean muscle mass and support a healthy heart. This formula features high-quality proteins from beef and lamb, providing essential amino acids for your dog's overall well-being. Enhanced with GanedenBC30 probiotic, it promotes digestive and immune health, ensuring your pet stays vibrant and active. The balanced blend of Omega-3 and Omega-6 fatty acids nourishes your dog's skin and helps maintain a shiny, beautiful coat. This low-carb recipe is conveniently packaged in a 23-pound bag, making it an excellent choice for adult dogs requiring optimal nutrition.