It is not good for cats to drink milk every day.
Milk and cat milk than, which contains a high proportion of lactose, fat and protein is lower, in addition to not meet the high protein, high fat, low lactose kitten nutritional needs, high proportion of lactose is difficult to fully decompose, accumulated in the intestine, can not be digested, milk protein in milk is also easy to cause allergies, all of these will be very easy to make cats belly bigger.
Serious cases will also cause diarrhea, which will make the kitten unable to absorb nutrients due to dehydration from diarrhea, so the body will become weaker, which is very dangerous for kittens with very weak body resistance.
Expanded Information
Cats are standard carnivores, and for cats, meat is the food that best matches their nature. Cats have a very high demand for protein and a very high absorption capacity, so feeding your cat meat is the most nutritious and best absorbed food for your cat.
If you don't feed these meats as a staple food, then you don't have to think too much about the nutritional mix, and just need to boil some in plain water to feed your cat from time to time. Of course, if you hope to homemade cat rice or raw bone meat feeding, you must be reasonable collocation Oh. Generally speaking, cats prefer meats with higher protein content, such as beef, chicken breast and so on.
Reference Sources
Baidu Encyclopedia - Milk (Drink)
Baidu Encyclopedia - Cat (Feline)