NUTRO Max Adult Senior Chicken Dry dog Food 25lb. Made with non-GMO ingredients. All natural food for mature dogs is specially formulated to meet the nutritional needs of older dogs. Made with farm-raised chicken, plus added vitamins and minerals, NUTRO MAX Senior Food for Dogs provides complete and balanced nutrition in every bowl. Your dog will love the savory flavors of real chicken and whole grains, and you will like that NUTRO MAX Food for Dogs never contains chicken by-product meal, corn, wheat or soy protein