Best for Senior Dogs Nutro Natural Choice Dry Dog Food for Senior Dogs

As dogs get older, they may need fewer calories, but they also have changing nutrient needs. This formula has extra calcium to support strong bones and joints, fiber for digestion and antioxidants for a healthy immune system. The main ingredient is either chicken or lamb, depending on the recipe.
The food is made with no corn, wheat, soy protein or GMOs. It is also available in senior small breeds and senior large breeds for special formulas tailored to the needs of aging small and large dogs.