NutriSource Senior Dog Chicken and Rice Formula provides super premium nutrition in a scientifically formulated easy-to-digest food specially designed for dogs 7 years of age and older. Real chicken is the number one ingredient in NutriSource. Chicken is a source of high quality protein and has a rich, wholesome taste dogs love. NutriSource combines chicken, rice, and carefully selected ingredients in the precise blend to balance essential nutrients necessary for optimum health, well being, and long life. The readily available nutrients in chicken and rice result in less waste.