Hey John – I have a Viszla Pointer. I am not sure why he never “hardened” up on the Nutrisource as his breeder uses it on some of her kennel dogs and loves it (She has won two yearly supplies of it) from show competitions. It is also very available where I am located and made in MN!
Just my dog I guess. I even cut him back by 1 cup daily and he maintained his weight (generally a good thing). Nothing against the food, and the energy, and shiny coat and skin was always there.
Some think that the more protein the better per serving, but I have heard multiple times now that many dogs are susceptible to “too much” protein in one serving and my guess is that this was my situation.
I know when I tried to be a muscle head in college I had the same problem!