Nulo Freestyle Senior Dog Grain Free TroutTreat your senior dog to a superior nutrition plan that keeps them fit and healthy for years to come. With all the benefits of a high animal meat, grain free formula, our senior formula also includes Glucosamine and Chondroitin to support hip & joint health. And the addition of L Carnitine helps the metabolism of fats for dogs that arent quite as active as they used to be. Who says old pups slow down? With Nulo FreeStyle they can get better with age.