I use Eukanuba small breed puppy. I was a little worried when I first got Lucy because she did not seem to be eating much. However, she will tend to eat more if I am sitting close by or after an active play session. Everything I've read says that as long as they are still active, your dog is probably getting enough. I just make sure she has fresh water everyday and leave food in her bowl at all times so she can eat though out the day. It works for us