all my old dogs ate junk lol!!! my shadow lived to be 13 years old and he ate old roy or purina dog chow....purina puppy chow when he was a pup..... I have no idea what he died from but it was fast. he died in his sleep.
my ace lived to be about 13 also he ate purina puppy chow as a baby and then mixed broken bag food. ha! he had no health problems I had him put down because of hip pain.although when he was young his ofa was excelent
my millie a cocker mix also lived to be almost 18 years old eatting whatever we fed her.....she was put down after tangling with a sick racoon.
my zeus now eats purina pro plan.....I figure my others did so well on purina I would stick with it....just up the quality a bit
our farm dogs eat purina dog chow.