Kittens need to drink breast milk or goat's milk. It is best to give the kitten breast milk, because breast milk is rich in nutrients and can enhance the kitten's resistance. If breast milk is not available, goat's milk can be used instead. However, you cannot give milk to cats, because the lactose content in milk is relatively high, which makes it difficult for cats to digest after drinking it, and may cause vomiting and diarrhea. Therefore, you cannot give milk to cats, especially young cats.