A plot where a character is inspired to go vegetarian. The most common reasons are either it being a challenge or bet, the characters learning how meat is produced and becoming so disgusted that they decide to abstain from meat for good, or health reasons. However, rarely does this change last over an episode. If a character is forced by another they will often be tempted to quit multiple times.
- In an Archie Comics story, Big Eater Jughead decides to become a vegetarian, or at least a "health food nut". Consequently, malt-shop owner Pop Tate converts his store into a health bar (since Jughead formerly bought enough hamburgers there to keep him in business). When Pops asks Jug how carrot juice and such makes him feel, Jughead pleads for a hamburger or six, and everything's back to the status quo.
- In The Murder of Roger Ackroyd, Caroline prepares only vegetarian meals whenever Poirot visits, in order to impress him. Of course, he figures out that Caroline is not actually vegetarian.
- One episode of Friends had the vegetarian Phoebe craving meat during her pregancy. Joey helped her deal with it by offering to go vegetarian himself but begins having meat cravings as well.
- In The Nostalgia Critic's review of Suicide Squad (2016), this trope is brought up when Diablo, who supposedly sworn off violence for years, drops this oath after a few moments of touching him against his will.
Deadshot: Is that really all it took to get you back into violence?Diablo: Yeah, I know...Captain Boomerang: Years of pacifism destroyed by tapping on your head?Diablo: I just don't like people touching my head, okay?! It's annoying!Deadshot: (snicker) Well, we "appreciate" your "sacrifice".Captain Boomerang: Yeah, it's like one of those guys going vegan for a day.Deadshot: I know, right? Pussy.
- Played with in Braceface. In an early episode Sharon goes vegetarian ,after learning about the conditions in her job at a meat plant, and stays that way. In the second-to-last episode she learns she developed anemia due to her diet and is told to stop it.
- In the aptly named Teen Titans Go! episode "Vegetables", Beast Boy finally manages to convince the others to try vegetables. It went horribly right and caused them to summon the Monster of the Week.
- In the Arthur episode, "Sue Ellen Vegges Out", while Sue Ellen becomes a vegetarian out of respect for a pig she befriended, Muffy becomes a vegetarian because a famous celebrity does, though she has a hard time not eating meat. When the famous celebrity switches to a different diet, she decides to eat meat again. Francine becomes a vegeterian to try to beat Muffy at her own game, but Muffy tries to sabotage her every attempt with meat byproducts. After Sue Ellen explains the reason why she became a vegetarian, Francine and Muffy decide it's best they continue eating meat just so they don't argue with each other.
- In one episode of Kenny the Shark Kat decides to go vegetarian after watching a documentary on lions. She tries to get her pet shark to be too. It backfires as expected.
- Stan from South Park ends up becoming vegetarian in "Fun with Veal". He quits after contracting Vaginitis from not eating meat. The joke references Cartman earlier saying "If you don't eat meat you become a pussy" and the disease has the individual literally breaking out with vagina-like sores all over their body.
- Subverted in "Lisa the Vegetarian'" episode of The Simpsons. Despite her young age and her parents trying to stop her, Lisa stays vegetarian and has consistently been depicted as such since. The reason why Lisa remains a vegetarian after that episode is because Paul McCartney makes a special guest appearance in that episode, and the only way to get him to do so was to keep Lisa a vegetarian.
- Subverted in Avatar: The Last Airbender. At one point Sokka gets stuck in a hole chasing a baby moose-lion cub. He pleads with the universe, promising to never eat meat or be sarcastic ever again, if it will just let him out. Of course, once his friends rescue him, he immediately decides to do no such thing.
- Bobby from King of the Hill once temporarily became vegetarian in order to impress a girl.
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