Marion Nestle

Virtually every food and beverage product is represented by a trade association or public relations firm whose job it is to promote a positive image of that item... It is the interest of food companies to have people believe that there is no such thing as a "good" food (except when it's theirs); that all foods (especially theirs) can be incorporated into healthful diets - which means that no advice to restrict intake of their particular product is appropriate.