@Oscarbingham:
I wouldnt drink the saliva or the Blood of Any cow, just like I wouldnt drink the milk out of a Cat or a dog. For ethical reasons, only vegetable milks here please!
Each almond that makes up your almond milk requires 5 liters of water to produce it.
++++
As for drinking cow's milk, it's very good for you, especially if you are white.  Non-whites tend to be lactose intolerant, while whites evolved to be able to drink milk to help us with Vitamin D and Calcium.
If you live in the north or south part of the globe and are white, then drinking milk is beneficial for you especially in the winter when the sun is farther away from you.