I read that you should be talking about milk-containing drinks. This kind is not recommended to drink for a long time, it will cause children to consume a lot of sugar. This kind of milk flavored drink that tastes good, basically contains a lot of sugar. Nowadays, the conditions are so good that children are already consuming a lot of sugar and fat every day. If you want to be healthy and want to get protein or something, you can let him drink plain milk. If he is lactose intolerant, he can drink yogurt. Or soy milk, eggs.