NutriSource Large Breed Puppy Chicken and Rice Formula provides super premium nutrition in a scientifically formulated easy-to-digest food designed for puppies of breeds that will mature at more than 50 lbs. NutriSource Large Breed Puppy is formulated to provide proper nutrition for balanced muscular and skeletal growth in large and giant breeds. NutriSource Large Breed Puppy contains specially adjusted levels of calcium and phosphorus matched with balanced protein, fat, carbohydrates, and calories to supply large breed puppies the nutrition to grow and develop to fullest potential.