Hello how may I help you? I need some advice about my dog. Can you help me out? i can help you with all your dog related questions. I am curious as to how much dog food I should need in order to feed my dog for a week. What kind of dog do you have? It is a German Shepherd. For German Shepherds need 20 lbs of food a week. That's about 3 pounds of food per day. Does that sound about right? Yes, that is correct. Okay. At least now I know what I have to buy each week. Thanks. You are welcome.