Size: 4 lb. Bag Crafted by expert nutritionists, Natural Balance Original Ultra Grain Free Senior Formula dog food nourishes your dogs complete well-being and total health. This grain-free kibble features high-quality ingredients, with premium U.S. farm-raised chicken as the #1 ingredient. Ideal for seniors and less active dogs, these bites are formulated with vitamins and minerals, marine-sourced EPA and DHA fatty acids, and a superfood blend to help support healthy immune function and strong bones and teeth. Natural Balance Original Ultra Grain Free Senior Formula dog food contains no gluten ingredients, corn, wheat, or soy, and is free of artificial flavors, colors, and preservatives.