[Dudley's Mom]

The vet today says he shouldn't gain any more weight but he is only 14 weeks old. He weighs 4 pounds and I don't know how to make him not gain anymore. He is a little pudgy but he is active, playing ball and chasing the other dogs around the yard. He is currently eating 1/2 cup of Royal Canin kibble for yorkie puppies a day and Cherrios for training, approx 5 a day. Anyone have any ideas?