As did I Phill, it was practially straight from the cow (farmers daughter!) and I found that I never had any colds etc. I now drink shop bought semi skimmed and always have colds - obviously my immune is lower now!
Surviving and thriving are two different things, though
I used to work for one of the UK's railways, and by god the phrase "Because this is how it's always been done" was used by just about every Luddite there