Researchers at the Centers for Disease Control and Prevention found that of 121 dairy-related disease outbreaks between 1993 and 2006, 60 percent involved non-pasteurized products. Because consumption of non-pasteurized products is relatively low, the study called the incidence of outbreaks "remarkable."

The Weston A. Price Foundation, which champions raw milk and other traditional whole foods, says the CDC has "manipulated and cherry-picked" data to make non-pasteurized milk look dangerous.