Cow milk is a type of drink that comes from cows. Cows are big animals that live on farms and they make milk to feed their babies. Farmers collect the milk from cows and sell it so that people like you and me can drink it.
Milk has a lot of different things in it that are good for your body, like calcium, protein, and vitamins. It also tastes good, especially when you add chocolate or strawberry flavor to it.
But, some people can't drink cow milk because it might make their tummy hurt or make them feel sick. For those people, there are other kinds of milk they can drink, like almond milk or soy milk.
So, drinking cow milk is a yummy way to help you grow big and strong, but if it doesn't make you feel good, there are other types of milk you can try too!