Why raw milk should be avoided – (Quack Watch)

http://www.quack-watch.org/01QuackeryRelatedTopics/rawmilk.html
Raw milk is milk in its natural (unpasteurized) state. Public health authorities advocate pasteurization to destroy any disease-producing bacteria that may be present. Health faddists claim that it destroys essential nutrients.
Although about 10% to 30% of the heat-sensitive vitamins (vitamin C and thiamine) are destroyed in the pasteurizing process, milk is not a significant source of these nutrients. Contaminated raw milk can be a source of harmful bacteria, such as those that cause undulant fever, dysentery, salmonellosis, and tuberculosis.
“Certified” milk, obtained from cows certified as healthy, is unpasteurized milk with a bacteria count below a specified standard, but it still can contain significant numbers of disease-producing organisms.
In 1986, Federal Judge Norma Holloway Johnson ordered the U.S. Department of Health and Human Services (HHS) to ban interstate shipment of raw milk and raw-milk products. The judge ruled that unpasteurized milk is unsafe and that FDA officials had been arbitrary [...]

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http://www.extension.iastate.edu/foodsafety/news/fsnews.cfm?newsid=25624