Yes, if it comes from a dairy-factory-type source. Pasteurisation kills off a lot of bacteria and makes milk last longer, which is good if you're a factory that puts out huge quantities of milk, from cows housed in many dairy farms, and sell it to grocery stores. We drink pasteurized milk ourselves.

The problem is that pasteurization also kills off a lot of good stuff - good bacteria, certain enzymes, yadda yadda. And some people believe that it's also got various "healing powers." My friend Wanda gives her girls raw milk, and claims that her middle daughter went from sickly & tummy-miserable to perfectly healthy once she started on raw milk. Personally, I have my doubts, but she's read studies that seem to show it has some benefits.

In any case, you can't buy or sell raw milk. It's illegal. So the only way you can get raw milk in Ontario is to own your own cow, or join a cow-cooperative, like Wanda did. She owns something like an eighth of a cow, and the cow is taken care of by a dairy farmer who milks her and puts her raw milk into a container for the families to share. The owner families then take turns picking up and distributing the milk. They know where the cow is, they know the dairy farmer uses safe methods to make sure the cow remains healthy and her milk isn't stored where it might pick up anything nasty.

In many places, it is illegal to even do that much. If you drink milk straight from a cow, you are breaking the law.