OPTIMUM™ Grain Free Active Dry Dog food range is formulated without grains or gluten to provide your adult dog with a diet high in protein with added essential vitamins and minerals. Just like us, some dogs aren't at their very best when fed a grain-based diet. That's why OPTIMUM™ have scientifically formulated a Grain Free formulation. Providing your dog a nutritionally complete and balanced food that is not only free from grains, but also high in protein with added essential vitamins and minerals. Meaning your dog can get more out of their food, to get more out of life.