Catherine , have you ever seen the movie Fast Food Nation ?   Yes , I remember it was inspired by a New York Times best-seller of the same name .   It's very thought-provoking , isn't it ?   Exactly . It reveals the dark side of the all-American meal .   So what do you think of the American fast food culture ?   I think America really deserves the name of " fast food nation - as people can find McDonald ' s , KFC and Pizza Hut almost all over the States .   And everyone knows that Americans ' favorite food is the hamburger , isn't it ?   Sure . You see , Tom , fast food is a lifestyle that craves convenience . People just don't care whether it is healthy or not .   But I think some healthy menu options are also served at fast food restaurants ..   What are they ?   Such as fat-free milk , whole-wheat rolls and fish sandwich . 