Perhaps one reason that science is not believed by more people in the general public is that some public figures make a living by spreading misinformation about science. The public is not just in a state of tabula rasa neutrality before scientists begin communicating with the public, but rather the public has already been stuffed full of misconceptions by people who have something to sell to buyers who are ignorant of science.

http://www.sciencebasedmedicine.org/the-food-babes-war-on-ch...