Designed for puppies from weaning until 12 months of age. It is also excellent for pregnant or nursing dogs. A growing puppy needs twice the nutrients that an adult dog needs. PRO PAC ® Performance Puppy is made from quality ingredients such as chicken meal and chicken fat. It assures that your active puppy will receive proper nutrition for growth and development: Extra calories for energy and growth, More protein, to help form muscles, organs and strong bones, and DHA for brain and eye development. Naturally preserved and contains no by-products.