Tailored kibble design encourages the Rottweiler to slowly chew each kibble, decreasing the risk of gastric torsion. Kibble texture, shape, size and density help fight plaque and tartar for healthy teeth and gums. Immunity Booster Specialized complex of antioxidants help to strengthen the puppys vulnerable immune defenses. Promotes optimal muscle development with controlled energy levels, moderate fat levels, moderate fat, and high quality proteins to help promote strong, healthy muscles.