The thing with EVO is that it's like 42% protein or somehting, I could run upstairs and check the bag but I'm being lazy. So Happy might not need as much of it as you might think. I only feed EVO to the little boys so I can't give you any idea about what to feed a dog Happy's size at least with that food. I know Winter is very close to Happy's size both in height and weight and she gets about 3/4 of a cup to a cup of food a day.