Yong King Charles Cavalier Spaniel Gets Purina Puppy Chow

I have a King Charles Cavalier Spaniel who is 4 months old and her name is Stealla. I feed her Purina Puppy Chow. I chose this brand because it is the brand the breeder was using. I did check with my vet about using this brand and he said it was fine. We usually purchase her food at Cub grocery store because it is convenient for us to get while we are doing our shopping.