Hill's Science plan Medium Puppy dog food with Lamb & Rice is rich in flavour & carefully formulated for the developmental needs of puppies, so they get the best start in life & grow to their full potential. It contains DHA from fish oil for healthy brain & eye development, High-quality protein for building lean muscles and balanced minerals for strong bones & teeth. Recommended for Puppies up to 1 year old and pregnant or nursing dogs.Not recommended for adult or mature dogs.