Breast milk cannot be given to dogs because it can easily cause lactose intolerance in dogs, causing vomiting, diarrhea, etc. Therefore, it is best not to give breast milk to dogs. If you want to give your dog breast milk, you can feed a little less first, and then observe whether the dog has vomiting or diarrhea. If there is no abnormality, you can continue to feed a little more. If there is any abnormality, stop feeding.