The Natural Balance is a little high in Copper and Cockers are a breed that is currently affected by copper toxosis, people don’t know if their dog is one until they have liver failure, so better safe than sorry and feed a diet from one of the high quality, lower copper foods available... I know not everyone is going to feed raw as I do, but there is some excellent grain-free kibbles available now.. (Raw instinct, Natures Logic is two that are good)
I didn't know that. But I can tell you that my 18 year old Cocker ate the NB for well over a year with no ill effects at all.
Our Pug and Papillon love the stuff and switching to that food seems to have cleared up a number of problems our Pug was having.
Thanks,
L