Some dogs never feel full, so I just don’t apply that kind of logic. And in my personal life, I can tell you that eating throughout the day rarely actually has anything to do with feeling full or not, so again, I don’t think of it that way. I once had a 24 lb beagle that got loose while I was at work. He ate a 25 lb box of dog biscuits. He ate as much as he could hold, more actually, then vomitted all over the place, then ate more, then vomitted all over the place, etc. When I got home, there was less than 4 lbs left, so he ate more than 21 lbs and a cardboard box. You will never convince me he was hungry. So how do you know when a dog is hungry, if they will eat even when they aren’t?
Small breed food is more food if you aren’t weighing portions, because the pieces fit closer together so the cup holds more food, less air.
Unless you are feeding according to calorie count, then any amount more fat is more calories, however some dogs seem to always want more food if the fat level is too low. So that may be another consideration for your dog. If you have to feed a certain amount of food, you may want to start watching calorie count on the foods you are interested in trying, and look for one that has the fewest calories per cup.
