Hello how may I help you? hi can you help me with something? How much dog food should I go through in a week? What bread of dog do you have? I have a 150 lb Saint Bernard named Sumo lol i like that He can have 3 cups a day Thanks lol treats too but limit them to 2 or 3 a day Ok so how many 25 lb bags of dog food do you think I should get that will last one month? I am heading to the store One should be enough especially if you mix with a soft can every other meal or so Ok thanks! enjoy!