Spock and Bones, still on puppy food, eat twice a day, 2/3 cup in the morning and a full cup in the evening. We've got a magnetic whiteboard stuck to the refrigerator door that lets us check off when the puppies have eaten so we know whether or not they need food. I didn't look at the board too closely this morning, being really tired when I stumbled out of bed, and fed the puppies about half an hour ago, only to discover my boyfriend had already fed them at 8 and come back to bed. Now they're running around outside with the fattest little tummies I've ever seen on them.