We do mix it with Science Diet. We’re sadly down to one dog but the blue heeler made it to 16 1/2. The old dachshund is going to be 13 this summer and we can hardly keep up with him on a walk. And he only has three functional legs and is asthmatic. LOL
Blue heeler? I bet you’ve heard of Skidboot. https://youtu.be/P2BfzUIBy9A?t=4