Cereal and milk for my dog?

No milk or cereal. First your puppy could be allergic to dairy which may cause some health issues and second the cereal is just not good for her (dogs are meat eaters by design). If this is all she is eating then she is not getting all the nutrients she needs especially as a puppy. As much as you would like to treat your little one as a person and enjoy watching them eat food for people you always have to remember this is a dog and they have different digestive systems. Most dogs will eat anything you give them and will eat bad things and most times can't distinguish what is good for them and what is not so you have to do the right thing and give them the right things to eat. Please be responsible.