Hello how may I help you? About how much dog food should you go through in a week? That depends. What kind of dog do you have? I have a chihuahua. In that case, only five pounds a week. Is it bad that I'm only going through 3 pounds? A bit. Feeding your dog a little more would be better. Is it okay if I gradually increase how much he eats per day? That would be perfectly fine. Great, thanks! You are welcome. Hope you and your dog will be well.