I believe that, like many Americans, they trust their gut. That feeling in their gut produces facts. If their gut feeling is that the earth is flat, it must be true. If their gut feeling is that nutrition is simply the consumption of anything (pickles, doritos, couch cushions) it must be fact. If their gut feeling is that since soda is a liquid it bypasses the stomach, since it's not food, and goes directly out the pee hole, it must be fact.