What works for my Brown dogs is : " Regular Iams, Dried small kibble ( Not the old dog diet crap) and Vitamins, I just don't over feed them ( 2 1/2 cups in the morning and 2 1/2 cups at night, Losts of water!). Sure they walk around giving me that look! But they will be " Around" a lot longer. Nope I'm not a Vet either! But I have been through a lot of pups!
Ivan