The Simpsons S13 E08 Sweets and Sour Marge

"Just a product of society that's lost its good manners."

Springfield is officially declared the World's Fattest Town after an attempt to break a world record lands everyone on top of a truck scale. Out of embarrassment and disgust, Marge goes on a crusade against the local sugar corporation. However, when sugar is banned, Homer, Bart, Mr. Burns and Apu start bootlegging sugar.