Someone posted on the Rottie forum that their three dogs (all 100+lbs) eat a combined total of 180lbs of Orijen dog food, per month. That seemed like an awful lot to me considering the ages and activity level of their dogs, plus I thought the better the quality of the food the less you had to feed. A 40lb bag last me the whole month and it's not the greatest brand in the world (not the worst either). That's for Harley and Bailey; Harley weighs over 100lbs and is moderately active. I was just wondering how much dog food you guys go through a month.