Green Bean Diet!!!
Sam is a trim 6 pounds and she gets just over 1/8 cup of Canidae twice a day. Plus treats and snacks.
It all depends on activity too. Sammy doesn't stop moving... I think her tail even wags when she sleeps. Loki is a couch potato so he has problems keeping weight off. Also you can't base anything on mine because half the time they get canned food or whatever we cook for them...