Stock Aesop dealing with not eating so much junk food/exercising more.
"What do you get when you guzzle down sweets?
Eating as much as an elephant eats.
What are you at, getting terribly fat?
What do you think will come of that?"Our protagonists may be seen eating junk food whenever they can (sometimes being integral to the plot), but no one's really raised a big stink about it, right? In comes this Stock Aesop, which does its damnedest to demonize too much junk food and glorifies exercise. Generally, it involves one or more characters getting hooked on some sort of junk food, making their health deteriorate badly and expanding their waistline. Usually, the rest of the group (if it's one person addicted) or the sole outlier (if the whole group's addicted) will have to get things back to normal. These morals tend to get heavy-handed, which combined with their increasing frequency can quickly make them the bane of Genre Savvy viewers. In all fairness, though, the children of America have been getting fatter, so obviously the higher-ups want to tell people about it. This won't stop the writers from having the protagonists eating more junk food in the next episode, though. After all, Status Quo Is God. Compare If It Tastes Bad, It Must Be Good for You. Contrast Balloon Belly and The Fat Guy (which are about fat people Played for Laughs) and Acrofatic (which is about fat people that can achieve impressive physical feats despite their weight).
-- Willy Wonka and the Chocolate Factory (the 70's film)
Examples:Anime and Manga