Big dogs need lots of love, and Hill's Science Diet Large Breed Puppy dry food is specially made with a delicious chicken flavor and an optimal level of calcium for controlled bone growth - a unique developmental need of large breed puppies. Give your large dog his or her best start in life so they can grow to their full potential with balanced minerals that promote strong bones and strong teeth. This dog food made with natural ingredients uses DHA from fish oil to support your large dog's eye development and brain function. High-quality protein helps your large dog build and maintain muscle.