Speak to the doctor concerning the correct amount of food for your dog. Though you can find those that give their pet whatever is written on the package, this will make it overweight and could not be advantageous to your dog. Consult with your vet on what your pet's requirements are and what amounts are right and you will have a healthy dog for life.
If your puppy is a digger, make sure to protect him and your garden. Some plants are toxic to pets, not to mention the damage these feet make and can do to your precious flowers.