Kittens are best fed the following types of food:
First: Give kittens dairy products, preferably goat milk powder. You can also feed them kitten formula during the weaning period.
Second: You can eat meats that are high in protein.
Third: Feed them a well-balanced, healthy cat food.
Fourth: Eat some whole grains and supplement with appropriate amounts of fruit vitamins. 
The reasons why kittens eat these kinds of food:
First, kittens under two months old can be given goat milk powder. At this age, their chewing ability is weak, and they mainly rely on solid food. Goat milk powder is easy to digest and is gentler and more nutritious than cow's milk. During the weaning period, you can buy kitten formula for them.
Secondly, cats are carnivores. You can feed kittens beef, fish, chicken breast, etc. These meats must be thoroughly cooked before feeding them to kittens. This makes them easier to chew and digest.
Furthermore, if you want a healthy and hassle-free option, go to a pet store and buy pre-mixed, healthy cat food. Cat food is formulated by nutritionists, providing a balanced range of nutrients, so you won't have to worry about your kitten's growth.
Finally, you can cook some porridge or noodles for your cat, making them soft and easy to digest. You should also give them some fruit to ensure they get enough vitamins and boost their immunity.
Summarize:
Many people love keeping cats, but before you decide to get one, you need to know how to care for it. A cat's diet is very particular, and there are many things to pay attention to, especially for kittens. Therefore, we should learn about cat care so that our pet cat can grow up healthy!