Drinking milk helps to grow muscles.

But according to the report of the World Health Organization, this effect is too small. Pure milk is white people's drink, because white people's physique is easier to absorb and transform protein in milk. For the yellow race, milk is not so delicious. Because of physical reasons, the yellow race can't even absorb 10% milk, and even some people will have dizziness, nausea, vomiting and other symptoms when drinking pure milk for the first time, so pure milk is not a good drink for the yellow race.

Drinking milk is mainly used to supplement calcium in the body.

Because you sweat during exercise, you will lose a lot of trace element calcium with sweat. If long-term exercise does not supplement calcium, the speed of osteoporosis will be faster than that of normal people. This is also one of the reasons why fitness enthusiasts did not live long before.

So drinking milk often is of great benefit.