We created CANIDAE® Life Stages Large Breed Puppy Duck Meal, Brown Rice & Lentils formula especially for pups with big appetites and lots of growing to do. Duck meal has high levels of omega 3 fatty acids, which play an important role in reducing inflammation within joints—an important benefit for growing large breed pups. Lentils help satisfy big appetites and are a satisfying source of sustained energy. And lower fat and protein levels help large breed puppies achieve and maintain optimal weight.