As this is a rehash topic, I'll summarize what was in my previous reply to this.

Pasteurized milk lacks what your body needs to properly digest it. Minerals are leached from your bones to digest it, leading to problems like weak bones.

Raw milk bolsters your immune system. They did a test back in around the turn of the 1900's where they had people go on a milk diet of about a gallon a day as their primary sustenance. If someone needed more solid food, they were given a supplement of healthy bread and/or chicken soup.

The result of the diet after a month was that conditions like diabetes, chromes disease, and other conditions were healed.