Scare journalism is big business. Hardly a day goes by without mainstream media promoting "X is harmful to your health" claims based on surveys, epidemiology and suspect methodology.
As a result, people are taught to be afraid of Subway bread, beer, high fructose corn syrup, MSG and even gluten without a reason.
It's not a shock that a certain demographic is going to be be easily driven by fear and misperception. But who? The easy answer has long been Whole Foods shoppers, because they are against vaccines, traditional farming and increasingly seek more laws and regulations to save them from the unknown. States like California, New York and Washington are hotbeds of anti-science beliefs.