Cows do not always produce milk, they are mammals like us and must be pregnant to make milk for their babies.
All males are by-products of the dairy industry and are killed as babies to make veal. Can you imagine what their lives are like?

The short answer, pus, lots of it, along with natural mammalian hormones like estrogen.

The estrogen in dairy can cause Gynecomastia aka bitch tits / man boobs, along with many other health problems.
On the otherhand the phyto estrogen in soy milk actually has protective effects by blocking the estrogen receptors in our bodies. If you ever heard soy estrogen is dangerous you have been lied to.
If you consume dairy products you NEED to know this. When consumers buy dairy they are DIRECTLY supporting an industry that kills all males when they are still babies.
There are no such thing as "happy farms" all male babies are useless to the dairy industry and are killed for veal. Taken away from their mothers only hours after birth.
This is footage from Australia a short 2 minute documentary. There are no kind abattoirs (slaughterhouses) it is like this all around the world. Wherever humans consume dairy this is happening.
Their lives are in our hands, choose compassion go vegan.

What is your favorite plant milk? Comment bellow!
