Interesting article jules,i found this on another site
Cow milk is not good for human babies. Only Human milk is good for human babies. Even formula is seriously lacking in this department. If you have to give a baby milk from another species, goat milk is much better, although still lacking in omega 3 fatty acids. It is well tolerated and the proteins are easier to absorb and use than cows milk. This is due to the molecular composition, which for goat milk is 1/5 that of cow milk. Goat milk can be digested and assimilated in the bloodstream in 20 minutes versus two hours for cow milk.
For adults it is great. While it may have been put there for calves, it still has a lot of the things adult humans need. Plenty of fats and proteins. It is basically like eating meat. Imagine your a prehistoric hunter that has to hunt and kill to get these nutrients and then discovers he can get the same nutrients from domesticating a cow (or goat) and drinking the milk. A much safer grantee that he will not starve.
Now for the kicker. There is a huge misconception of what is good milk. Regular store bought milk is close to poison. It is loaded with hormones, antibiotics and pesticides as well as a number of allowed puss cells. That's right I said PUSS. Yummy. More importantly the processes of homogenization and pasteurization ruins the digestibility of milk.
Homogenization takes normal fat cells which are to large to enter the blood stream through the intestines and makes them small enough that they can. This scars the arteries and leads to heart disease because they are not supposed to be there.
Pasteurizing milk kills the enzymes needed to digest it, namely lactase which is needed to break down lactose. This is why so many people have lactose intolerance. Most people with lactose intolerance can actually digest raw milk because the enzymes are still alive. If you CAN digest pasteurized milk with no enzymes it is most likely because you have more milk drinking ancestors who developed the ability to produce lactase after infancy. Or you have been drinking it since your own infancy never turning off the lactase production.
Pasteurization also alters the protein. Cows milk has very different and delicate proteins. They are easily damaged by heat. The altered proteins can not be used very well by the body and most are carried out as waste.
Raw Milk = great adult food
Regular Milk = unusable protein, heart disease, puss, hard to digest, pesticides, hormones, antibiotics, burden on your body = poison