Hello how may I help you? I need some pet advice Sure I can help with that. What do you need? How much dog food should I go through in a week? Depends on the breed. What kind of dog do you have? lab retriever Lab retrievers should eat about 3 cups of food daily. Weekly that would be about 21 cups of food That's good to know, thanks anything else I can help with? That's it Okay, take care!