The only grocery store food that I would recommend would be Purina O.N.E. or Iams. Try not to get anything with food dye in it. Most pet store foods are good, altho I don't care for Science Diet, it has a lot of fillers. I feed my dogs Natural Balance, I get it at Petco, and it is about a dollar a pound (I think). My dogs all do great on it and they like it. I've tried other foods, one being Nutro, but they didn't like it.