PRO PAC Ultimates Adult Chunk and Mini Chunk superpremium formulas are specially designed for the normally active adult dog. High-quality chicken meal is the primary ingredient. It is combined with high-quality chicken fat. That makes PRO PAC Adult Chunk and Mini Chunk formulas highly palatable and easy to digest. PRO PAC Adult Chunk formula and PRO PAC Mini Chunk formula have the same complete nutritional content. They contain no by-products and are naturally preserved. Both formulas are 100% guaranteed.