[[quoteright:350:[[WesternAnimation/KimPossible http://static.tvtropes.org/pmwiki/pub/images/DrD_MayContainEvil_6642.jpg]]]]
[[caption-width-right:350:[[SuspiciouslySpecificDenial Side effects do not include loss of individual personality.]]]]

->''"Pleasing taste, some monsterism."''
-->-- ''WesternAnimation/TheSimpsons''
%% One quote on the main page, please. Rest can go to the quote tab. Keep it neat and simple.

A well known corporation has just come out with an amazing brand-name product. They've spammed it over every media channel, and everyone is using it because of its [[PsychoSerum "health benefits".]]

Obviously the world is coming to an end, if consumerism has gotten to that point. It can't get any worse than this, right? Wrong! For whatever reason, the product in question MayContainEvil, and that "may" is silent.

So now people are [[TheCorruption mutating]] into [[OneWingedAngel evil monsters]] and are on the loose, the rest are being [[TheVirus mind controlled]] and dying left and right, and the product is [[ImpossiblyDeliciousFood insanely addictive.]] Remember, ALWAYS [[YesButWhatDoesZataproximetacineDo read the small print]], particularly [[HumanResources the ingredients list]].

This plot often occurs in WakeUpGoToSchoolSaveTheWorld-type shows, as it easily connects a mundane plot ([[VerySpecialEpisode Drinking/ peer pressure/ vanity]]...) with an adventure plot (aliens/ zombies/ mind control...) The effect is often connected to the product to suggest a [[AnAesop message]] that is then [[{{Anvilicious}} turned up to eleven]], such as a card game that makes people so enthused they forget to eat, or a [[TheNewRockAndRoll rock band's music]] literally turning people into murderers. Whether this message [[FantasticAesop remains reasonable outside of context, or even applies at all]], varies.

Depending on how scary the evil is, and how familiar the product is to the kids in the audience, this can easily become ParanoiaFuel. Or, more often, {{Narm}}.

Compare NoProductSafetyStandards, SigilSpam and EvilTastesGood.
----
!!Examples

[[foldercontrol]]

[[folder: Anime and Manga]]
* The Connexus in ''Manga/AppleseedExMachina'' is basically a smartphone that you wear as a headset (it projects the images in front of your eyes). It becomes ''the'' must-have product in the Olympus consumer electronics market. [[spoiler:It also has a nanotech chip in it that takes control of people's minds, turning them into what amounts to temporary zombies, when it receives a certain signal.]]
* The villains of ''Anime/BloodPlus'' had a variety of products including candy bars that could, under the right circumstances, turn consumers into [[OurVampiresAreDifferent giant freaky bat monsters]].
* The early Creator/HayaoMiyazaki film ''FlyingPhantomShip'' has "Boa Juice", which cause people drinking it to dissolve.
* ''Anime/{{Kemonozume}}'''s "health drink" made out of Flesh Eater claws.
* Early ''Anime/SailorMoon'' used this as a standard plot, with gyms, jewelery and radio shows as the product in question.
* As part of his plan to take down Japan's society in ''Anime/SpeedGrapher'', Suitengu used the Tenozu megacorp to distribute products that contained a chemical that would lower people's inhibitions, making them more violent.
* Essett, the AncientConspiracy in ''Anime/WeissKreuz'', at one point marketed the "health drink" Freude to young girls as part of a MadScience experiment; drinking it regularly eventually caused their skin to degenerate gruesomely.
* In ''Anime/KillLaKill'', [[spoiler:REVOCS, the biggest clothing company in the world, sells clothing containing hostile extraterrestrial Life Fibers to customers.]]
[[/folder]]

[[folder:Audio Adaptations]]
* The Cuddlesomes in the Creator/BigFinish ''Series/DoctorWho'' audio adventure ''[[Recap/BigFinishDoctorWhoSpecialsCuddlesome Cuddlesome]]'': cute fluffy toys that will infect anyone who doesn't love their toys enough with an alien virus.
[[/folder]]

[[folder: Comic Books ]]
* The soft drink Goruda in "The Golden Ones" strip in ''Magazine/DoctorWhoMagazine'' (actually a product of [[spoiler: the Axons]]) which transforms children into aliens.
* In ''ComicBook/IncredibleHulk Annual Vol 1 18'': "Spelling Made Easy" is a best-selling book about necromancy aimed at the layman. Reading it aloud turns you into a demon.
[[/folder]]

[[folder:Commercials]]
* Ads for Polar Ice gum used this as a gimmick, claiming the gum turned people into polar bears. [[CaptainObvious Of course this was totally not true]].
* Ads for {{Creator/Hulu}} claim that the service's owners want to melt your brains with TV, because they're evil aliens that feed on brains. True story.
[[/folder]]

[[folder:Film]]
* In ''Film/UndercoverBrother'', a racist conspiracy involved putting a chemical in fried chicken to make black people act [[UncleTomFoolery like minstrel stereotypes of blacks]].
* ''Film/StrangeBrew'' (1983) had a mind-control agent added to beer.
* Beauline beauty cream in the ''Film/{{Catwoman}}'' movie can transform regular users into MadeOfIron, but if someone stops using it they look like a burn victim, ''and'' the heroine's best friend becomes ill enough to be hospitalized simply from using it regularly.
* The "Regenerate" product seen in the adverts for the ''Film/ResidentEvil'' films, being made by the giant evil organization.
* The 1989 ''Film/{{Batman}}'' movie had the Joker lace beauty products with the ingredients for his trademark Smilex poison. The twist was that the contaminated products weren't poisonous on their own; they had to be mixed when the consumer used multiple products together, making it harder to find the cause of the poisoning.
* ''Film/BatmanForever'' had the Riddler's "Box" devices which sapped people's intellect/thoughts and fed it to him; they didn't notice because they were so transfixed by the virtual reality imagery it beamed into their minds.
* The 1995 ''Film/MightyMorphinPowerRangersTheMovie'' had Ivan Ooze creating a plaster-like stuff tainted with Ooze's blood that turned any person who touched it (or at least their parents) into a mindless zombie.
* ''Film/SoylentGreen'' [[MemeticMutation is made of]] [[spoiler:[[ItWasHisSled people]]]]!
* The Silver Shamrock [[AllHallowsEve Halloween]] masks in ''Film/HalloweenIIISeasonOfTheWitch'', [[spoiler:which kill their earers with snakes and bugs when a certain commercial plays]]..
* ''Film/{{Freaked}}'' is about a former child star hired to do a publicity campaign for a dangerous new fertilizer [[BodyHorror that turns people into mutants]]. Or, in the case of Creator/MrT, ''[[GenderBender a woman]]''.
* A variation in ''Film/{{Idiocracy}}'': Brawndo, The Thirst Mutilator, is harmful for [[spoiler:''plants'', due to it being used to water farms, which results in the soil being salted by its electrolyte ingredient]]. Such usage is encouraged by the manufacturer, even going so far as to [[spoiler:literally buy out the FDA]] to ensure the message gets through.
* A further variation was used in ''Film/{{Serenity}}'' via the Oaty Bar commercial which [[spoiler: contained subliminal messages put there by the [[GenericanEmpire Alliance]] designed to trigger River's latent homicidal tendencies]]. (As far as anyone knows, the bars themselves are harmless.)
** Also in the Pax the government used to calm the populace. [[spoiler: The ones who didn't lie down and die from extreme calm turned into reavers.]]
* Averted by the lead-up viral marketing campaign for ''Film/{{Cloverfield}}'', which heavily featured a fictitious drink called "Slusho!", leading to online WildMassGuessing that the monster would be attracted to and devour its imbibers.
* ''Film/CSATheConfederateStatesOfAmerica'' gives us Contrari, a drug that is supposed to cure [[http://en.wikipedia.org/wiki/Drapetomania drapetomania]], a "condition" that Confederates believe causes their slaves to run away. It pretty obviously just keeps them drugged enough to be compliant.
* The titular product in ''Film/TheStuff'' is incredibly popular, addictive, and [[spoiler:a PuppeteerParasite]].
* In ''Film/KingsmanTheSecretService'', we have Valentine's sim cards, which double as receptors [[spoiler:for a signal that [[HatePlague drives up aggression while disconnecting the inhibitors]].]]
[[/folder]]

[[folder:Literature]]
* Basis of most of ''Literature/TheDemonHeadmaster'' books and their television adaptation, whether it's a mind-controlling computer game, a frightening pig-themed TV show or a DJ.
* The Trippy Show in ''When the Tripods Came'', a prequel to ''Literature/TheTripods'' trilogy.
* The Stormbreaker computers from the ''Literature/AlexRider'' novel ''Stormbreaker'', which contain the smallpox virus.
* In ''The Transformation'' from Marilyn Kaye's YA ''Literature/{{Replica}}'' series, teenagers' strange behavior turns out to be caused not by the candy fad or the hypnosis fad, but by subliminal messages in the television show everyone's watching.
* Played for laughs in ''Literature/HarryPotter'', when the Weasley twins test their products on unsuspecting students. These candies cause anything from mild illness to turning the person who eats it into a canary. Eventually, they develop Skiving Snackboxes, so that students can take one to get out of class, since they will cause you to puke or develop boils, etc.
* In Kevin Brockmeier's ''Literature/TheBriefHistoryOfTheDead'', it is suggested that the lethal virus threatening the world [[spoiler: was spread by a new Coca-Cola formulation]].
* In ''Literature/TheCandyShopWar,'' [[spoiler: white fudge]] is a delicious treat with the mild side effects of [[LotusEaterMachine total addiction]] and mind control.
* In Margaret Atwood's science fiction books ''Literature/OryxAndCrake'' and ''The Year of the Flood'', the [=BlyssPluss=] pills are marketed as the ultimate sex aid: they act as contraceptives, prevent the transmission of [=STDs=] and enhance sensation. Unfortunately some of the pills also contain an artificially created hemorrhagic Ebola-like virus that wipes out almost the entire human race.
* {{Downplayed}} and played for laughs, then subverted in ''Literature/TheLaundrySeries''. Apparently Apple puts a low-level glamour on their products that makes people want to buy them. In ''The Fuller Memorandum'' Bob falls for it and buys an iPhone. [[spoiler:It ends up saving his life after his friend installs anti-monster apps on it without permission.]]
[[/folder]]

[[folder: Live Action TV ]]
* In ''Series/{{Supernatural}}'', the Leviathans take over - among many other things - companies that produce corn syrup, which is in practically every kind of fast food. [[spoiler:They proceed to engineer the corn syrup so that it wipes out every other kind of monster, cures all major human diseases, and - oh wait - makes us docile enough to not notice we're being systematically killed and eaten on a worldwide scale. Dean's major concern, of course, is that he can't eat pie any more.]]
** They didn't get it right first time though - their initial attempts [[spoiler:turned people into ravenous, flesh-hungry monsters. And - to Dean's horror - an infected Turducken Slammer oozed grey goop when it was left for a while.]]
* ''Series/DoctorWho'' uses this trope to a ridiculous extreme. The new series alone has had earpieces that directly upload information into your mind (allowing for brainwashing), television sets from the 1950s that steal your face and emotion patches that killed the entire government of New New York and 99% of New Earth's population.
** Season four has [[spoiler:weight loss treatments that animate your flesh and catalytic converters that poison you.]]
*** For the first one, the "may" part is actually accurate. [[spoiler:On the original setting, the weight loss treatment actually removes that fat you didn't want, and turns it into a non-evil (and cute!) Adipose. But when it's ramped up to convert ''all'' your flesh...]]
** The old series pioneered the trope with the Autons. While the image of the shop-window dummies is famous, ''anything'' made of plastic can be an Auton, from dolls to wheelie bins, and in one particularly [[{{Narm}} hilarious]] instance, evil plastic chairs that [[http://i40.tinypic.com/10zv3i0.jpg eat]] [[http://i42.tinypic.com/2znspoj.jpg people]].
* Its SpinOff, ''Series/TheSarahJaneAdventures'', continues the tradition with the "organic" fruit drink from the Bubble Shock factory.
* In ''Series/TheMiddleMan'', the drink !!!! (pronounced by stomping one foot, throwing your hands in the air, and smiling excitedly) turns people into fish-craving zombies.
* In ''Series/BuffyTheVampireSlayer'', the Band Candy that made people immature. And later, beer that turned the drinkers into cavemen.
** The Double Meat Burger [[spoiler:[[AvertedTrope turns out to be made of vegetables]]]].
* In the ''Series/StarTrekTheNextGeneration'' episode ''[[Recap/StarTrekTheNextGenerationS5E6TheGame The Game]]'', an alien race plans to take over the Federation with a video game that [[ElectricInstantGratification directly stimulates the pleasure center of the brain]], starting (naturally) with the crew of the ''Enterprise'', save for [[CreatorsPet Wesley]] [[spoiler:and Data, who lacks a pleasure center]].
* A "Brent Smythe and Barry" sketch on ''Series/FastForward'' involved Brent and Barry being asked to a market a product that consisted of fat, sugar and unidentified radioactive isotopes. They decided to sell it as a children's ice confectionery. Upon being told it eats through wood and plastic, they decided to make that a selling point: the only icy pole on a metal stick.
* One episode of ''Series/TheGoodies'' has them attempting to dispose of a biological weapon for the U.S. Army. They sell it off as tomato soup to motorway cafes. It eventually ends up being used as petrol. And turns everyone into clowns.
* The LiveActionAdaptation of ''Series/{{Animorphs}}'' ([[FanonDiscontinuity assuming you admit it existed]]) had an episode with [[PuppeteerParasite Yeerks]] hidden in cell phones.
* Being a cyberpunk satire of consumer culture, ''Series/MaxHeadroom'' was fond of this trope in general, starting with the {{blipvert}}s in the PilotMovie which could fuse the synapses of your brain.
* While it never hit retail shelves, Vyvyan on ''Series/TheYoungOnes'' hits it on the head, pointing out the inherent marketing advantage of selling Evil In A Coke Can:
---> '''Vyvyan:''' ... when the patient drinks it, he turns into an [[AxCrazy ax-wielding]] homicidal maniac. It's basically a ''cure'', for not being an ax-wielding homicidal maniac. The potential market's ''enormous''!
* The ''Series/AdamAdamantLives'' episode "The Sweet Smell Of Disaster" centers around a soap powder company distributing an addictive perfume in plastic carnations.
* In S2:E9 ("Seasons Greedings") of ''Series/LoisAndClark'', a displaced toymaker comes up with a chemical formula which makes anyone who smells it act extremely greedy and childish. He invents a new toy (the Atomic Space Rat) to unleash the toxic substance on the public.
* ''Every'' episode of ''Series/EerieIndiana: The Other Dimension'' featured a bad guy of the week who would open a store that featured this particular trope as part of their product or service. It invariably sold ridiculously well.
* The [[GeneticEngineeringIsTheNewNuke genetic]] [[spoiler: SterilityPlague]] in ''Series/{{Utopia}}'' is formed of two parts that only activate when combined in a human. The two parts are genetically modified corn starch and a flu vaccine.
* Any product SKUL uses as the basis for one if its schemes in ''Series/MIHigh''. Examples include the mind regressing beauty treatment in "Forever Young", the logos that turn kids into human/clothing hybrids in "Evil by Design", and the addictive wursts in "Fit to Wurst" to name a few.
[[/folder]]

[[folder: Tabletop Games ]]
* The ethos of the Pentex Corporation from ''TabletopGame/WerewolfTheApocalypse'' went something like this: cram products full of corrupted spirits that serve [[PhysicalGod a divine embodiment of entropy and suffering]]; work towards encouraging a general [[CrapsackWorld crapsack atmosphere]], so that your customers can act as receptive hosts; watch as the possessed customers mutate and degrade into hideous monsters; claim profits and soldiers.
** There also was an entire source book about Pentex and its subsidiaries which explored the multitude of themes possible. It also noted that the rather heavy-handed approach described above was once taken by a Pentex-owned computer hardware corporation. What do you get when you plunk a spirit of entropy and destruction into every piece of hardware you sell? Yup, a product that is entirely unreliable and won't be bought, thus entirely undermining the purpose of the whole thing. When the Pentex Board of Directors learned of this, they were... [[BadBoss disappointed]]. The CEO's successor takes a more moderate approach, using it primarily to supply the other branches of Pentex with cheap computers - and of course selling a few outdated and mildly tainted models to schools.
** The Pentex products that ''aren't'' loaded with Banes exist in two categories: ones that are otherwise geared at making the world a worse place (and thus contain more mundane evil than supernatural), or ones that aren't ''yet'' but will be as soon as they can come up with something suitably malignant. In the second category are things like the "End Run" mini-marts attached to Endron petrol stations, which will allow them to roll out whatever evil scheme they come up with so that it hits ''everywhere''; in the first are things like King Breweries' beer, which only occasionally contains Banes but is ''always'' specifically designed to make your hangover a little bit worse than it would otherwise be. Then there's the occasional bit of memetic warfare, with companies like Avalon Toys (shoot werewolves like Action Bill does!) and Omni Television.
* A majority of cyberpunk game adventures are about stopping an evil corporation from putting a nasty product onto the market - or testing it on unsuspecting street people.
** The introductory story for ''TabletopGame/{{Shadowrun}} 4th Edition'' subverts this. The Shadowrunner team is hired by a corp to put something nasty in a rival corp's soda in order to make it taste bad. The runners find out that the substance in question would have led to the mass poisoning of many of the orks and trolls it was supposed to be marketed to, and the culprit is their employer's human assistant, who it turns out is part of the human-supremacist hate group Humanis, who engineered this scheme to ruin the reps of both his boss and the group's fixer.
* Any consumable product made from [[GreenRocks ghost rock]] in ''TabletopGame/{{Deadlands}}'' contains evil, and most of them have some nasty random side effects.
[[/folder]]

[[folder: Urban Legends]]
* Tropical Fantasy Mountain Dew, only sold in Harlem (New York City) was thought by some paranoid blacks to contain infertility drugs dispensed by the KKK.
* Similar rumors abound regarding far-more-widely available menthol cigarettes. There is a small grain of truth in this, though: while they don't outright make you infertile, they ''can'' make you impotent. Then again, so can any tobacco product.
* Not that long ago, Hamas started a panic in Gaza over aphrodisiac chewing gum, supposedly sneaked into their territory by Mossad to 'destroy the morality of their youth'. Probably best described as a combination of paranoia and ValuesDissonance.
* Pop Rocks, a candy that fizzled when you put it in your mouth (the main reason being it had carbon dioxide in tiny bubbles) and would give off sparks if stomped on, got a number of urban legends that kids stomachs had exploded from consuming too much of the material (usually in combination with soda, causing a carbon dioxide cascade effect), the most popular of these being the actor who played Mikey in the Life cereal commercials. None of this proved to be true (and was thoroughly {{Jossed}} by ''Series/{{Mythbusters}}''), though a resurgence of the legends has recently developed, replacing the Pop Rocks with Mentos (also Jossed by ''Mythbusters''; neither candy combined with soda will create enough gas to rupture your stomach, and in fact simply ''drinking'' the soda would decarbonize it before the cascade reaction with it and either the Pop Rocks or the Mentos could occur).
* Rumors have long abounded about [[http://www.snopes.com/horrors/food/bubbleyum.asp?print=y Bubble Yum bubble gum containing spider eggs]], which would hatch and grow in kids' stomachs. Even presuming a gum processing company had such low standards of cleanliness to allow this to happen, the point being ignored is the fact a spider would drown and be dissolved from the hydrochloric acid in one's stomach. [[ViewersAreMorons But apparently, this wasn't enough to assuage both kids' and parents' fears, and the makers of Bubble Yum had to take several full-page ads out to assure the public that there was no danger]].
* UrbanLegends persistently surround [=McDonald's=], usually that the meat in the hamburgers is not beef. Exactly what the rumor says it is varies from year to year; among the most surreal claims was that it was kangaroo meat, which would have had to be shipped halfway around the planet to be used in the US (and it's more expensive than beef, even in Australia). Also, fun fact about that one: kangaroo filets are perfectly normal in Australia, meaning there would be nothing particularly evil about eating kangaroo meat anyway. Other, more gullible folk believe their soft-serve ice cream is made from chicken feathers.
* A similar urban legend claims that Kentucky Fried Chicken recently changed the decor and logos in its restaurants to show just the chain's initials instead of spelling out the word "chicken," because they are feeding the public genetically engineered chicken-creature-tumor-flesh grown in vats instead of actual chicken, and for reasons of legal liability they no longer claim it is chicken. Except on the menu, of course, right? Right.
* Urban legends indicating the Powers that Be are dosing the food of males (colleges, the army) to lower their sex drive. This legend persists in spite of the fact that all the drill sergeants, training cadre, and officers all eat the same food as the trainees.
** 'Saltpeter' (a [[MadeOfExplodium flammable salt derivative used in gunpowder]]) is the usual culprit.
** Another culprit is the [[http://en.wikipedia.org/wiki/Potassium_bromide Potassium Bromide]], which was supposedly used in the in the British Army as well as in the Finnish Defense Forces and the Soviet Army. Creator/SpikeMilligan mocked this legend in [[Literature/AdolfHitlerMyPartInHisDownfall his war memoirs]], claiming that the only way this could have possibly worked as planned was if they'd loaded the stuff into artillery shells and fired it at a British soldier from the waist down. Also, veterinarians use Potassium Bromide as a ''sedative'', so using it on troops heading into combat would have been counterproductive at best.
* [[http://www.snopes.com/horrors/vanities/tapeworm.asp Tapeworm Diet Pills]]. Being infested with tapeworms ''will'' make you lose weight, so....
* [[http://en.wikipedia.org/wiki/Jamaican_ginger Jamaican Ginger]], better known as "Jake". A [[AllNaturalSnakeOil patent medicine]] made to get around prohibition laws, it used a similar looking but better tasting chemical to the ginger solids it was supposed to contain, since the government test was done by boiling off the liquid and weighing the residue. The problem was said chemical was later found to be a neurotoxin that lead to numbness and partial paralysis of the limbs ("jake leg") with prolonged consumption.
* A surprising number of people are convinced that the artificial sweetener aspartame, often used in diet soda, is extremely harmful, or going to control their minds, and that there is a massive conspiracy to cover this up. Though a certain percentage of the population may develop headache and/or upset stomach upon ingestion due to an inability to properly metabolize phenylalanine (one of the chemicals into which aspartame breaks down), fueling the conspiracy theories further. A study did prove that using too much increases cancer risk considerably, but bear in mind that the lethal dose was equivalent to a human drinking hundreds of cans of diet cola ''per day'', so one dose in a cup of coffee per day shouldn't be an issue for anyone.
* A conspiracy theory that occasionally pops up on the net is that certain junk foods (Coke and Doritos, among others) contain the eggs of a PuppeteerParasite that makes one crave sugary foods. Certain parasites like that do exist - moulds that infest bread, not intestinal worms; and they do so through digestive distress rather than outright mind control. But really, your body doesn't ''need'' any help to crave sugar, which is a quickly and easily-metabolized source of energy; carbohydrates are, in turn, made up of simple sugars which get broken down in your system. What makes sugar harmful is that it's very easy in today's society to eat too much of it (especially corn syrup, which is in ''everything''), and since most people don't use all of that energy, it gets turned into fat and stored for later. (And even that's only a problem because "later" never comes, and we hardly ever run out of food and have to live off that fat for days or weeks until we can get more.)
[[/folder]]

[[folder: Video Games ]]
* "NewAndImproved" Buzz Cola in ''VideoGame/TheSimpsonsHitAndRun'', was almost used by Kang and Kodos to control human behavior for a galactic "reality show". Soon after the first plan failed, they let the "all purpose evil cola" seep into the water supply and ground, [[ZombieApocalypse causing the dead to]] [[RiseFromYourGrave rise from their graves]].
* And of course, Scum Soda from ''VideoGame/{{Rampage}}: Total Destruction'', which made people turn into giant monsters. The worst part is, even after the public found out [[ApatheticCitizens nobody seemed to care anyways]]...
* Proto-Cola of ''VideoGame/DefendersOfDynatronCity'' caused people to mutate. Strangely, it was both played straight and parodied at the same time: The BigBad tried to use it to scare away the inhabitants of the city, but the people who used it viewed the mutations as [[CursedWithAwesome beneficial]].
* Mineral powder in ''VideoGame/EternalSonata'' gives people the ability to use magic and heals illness before it turns them insane and kills them.
* The ADAM in ''VideoGame/BioShock1'' is extremely marketable and incredibly useful, with capabilities ranging from curing terminal illnesses and incredibly easy cosmetic surgery to giving people the power to [[KillItWithFire set things on fire with their minds]]. However, it also [[PsychoSerum drives people]] [[WithGreatPowerComesGreatInsanity bonkers]].
** This is caused by the extreme physical dependency ADAM users suffer from. ADAM-granted physical changes are not stable, and decay in... unpleasant ways if not regularly topped up with fresh ADAM. The developers made the main character's hands become increasingly like those of a Splicer as the story progressed, implying that he's being affected too, although the really bad side effects take more time than the game lasts, and the ''worst'' gene cocktails for your sanity, the appearance modifying ones, aren't available for the player's use. [[spoiler:Although, the [[MultipleEndings good ending]] shows that he lives for several decades after the game ends anyway.]]
* The hypnotic teddy bears and "[[BlandNameProduct Eye-Bo]]" videos from ''[[Franchise/SamAndMax Sam and Max - Season 1]]''.
* ''VideoGame/MetalGearSolid4'': If you pay close attention to both the plot, and the various channels during the intro sequence, you'll notice lots of things with [[spoiler:nanomachines...]]
* Teleporter technology, the new killer app of United Aerospace Corporation in ''VideoGame/{{Doom}} 3''. Yes, we do acknowledge that right now it tends to, well, open the gates of Hell, but our engineers are diligently working on the problem and we expect to have a marketable solution shortly!
* MMO ''VideoGame/CityOfHeroes'' has at least a couple of easy examples from friendly neighborhood evil corporation Crey Industries. One is Crey Cola, a subtly addictive soft drink that would condition people to buy more and more of it as they drank. The other is the Crey OS, a computer operating systems which controls the minds of its users via subliminal messages, causing them, among other things, to want to buy more Crey-made products. That's sort of their business plan, to a large extent.
** Then there's the actual drugs (Superadine especially) which make you super powerful... and irreversibly mutate you, and a great example you don't learn about till the late game. [[spoiler: The Circle of Thorns are named for the 'spirit thorns' they use to make themselves more powerful. Only they don't actually make the user more powerful, they [[GrandTheftMe replace his soul with that of an ancient and powerful sorcerer]]. So it almost literally contains evil while being marketed as a power-up.]]
** Almost everyone in [[MirrorUniverse Praetoria]] drinks Enriche instead of ordinary water. It makes you happy... and if not actually Brainwashed, less inclined to notice or care about the cracks in Emperor Cole's little Utopia.
* The Happy Boxes from ''VideoGame/{{Mother 3}}''. Do ''you'' have one yet? [[BrainwashedAndCrazy It'll improve your life!]]
* In ''VideoGame/WorldOfWarcraft'', the Saronite ore mined in Northrend appears to actually be the crystallized blood of an EldritchAbomination that lies imprisoned beneath the continent. [[TooDumbToLive And you can totally wear it on your head as a helmet]], which, despite lore, [[GameplayAndStorySegregation has no actual ill effects]]. It does seem to induce madness in [=NPCs=], though, and the metal is highly prized by The Scourge for its unique properties.
* ''VideoGame/CommandAndConquerRenegade'' has (unuseable) vending machines that dispense [[ToxicPhlebotinum tiberium]]-laced soda-pop. The implication being that "if anyone wants to participate in our ongoing SuperSoldier project, go ahead".
* According to [[AllThereInTheManual supplementary materials]], a number of the [[VideoGame/ResidentEvil Umbrella Corporation's]] pharmaceutical products were created thanks to their B.O.W. research. The First-Aid spray somehow harnesses the T-Virus's ability to reactivate and regenerate dead cells, but on a small scale to heal wounds ([[ArtisticLicenseBiology if that makes any sense]]).
* In ''Videogame/DeusExHumanRevolution'', Tai-Young Medical's upgrade [[spoiler:is essentially a backdoor that allows people to hack into your brain and either make you helpless or drive you insane.]]
* ''VideoGame/SunsetOverdrive'' has Overcharge energy drink, which, after a massive party to celebrate its launch, was revealed to [[MutagenicFood cause mutations into horrific monsters]]. Floyd, who worked on the development of the drink, mentions that it was an accident that the mutagenic drinks were made available, but with all the cover-ups [=FizzCo=] uses to hide the catastrophe (including killer robots, a force field keeping anyone from leaving the city, and a giant balloon of their mascot armed with loads of weapons, it is obvious it wasn't as accidental as it seems. [[spoiler: The ending pretty much confirms this, as it [[SequelHook shows several large containers of Overcharge being shipped to other countries]] despite [=FizzCo=] being fully aware of its effects]].
* Red Lyrium in ''Videogame/DragonAgeInquisition'' is an extremely potent variant of regular lyrium. Everything lyrium does, Red Lyrium does better. Unfortunately for the Templars who use it, that includes the negative side effects of lyrium usage as well. One side quest reveals that Red Lyrium is regular lyrium [[spoiler:Tainted by the [[MysticalPlague Blight]]]].
[[/folder]]

[[folder:Webcomics]]
* Helen Narbon of ''Webcomic/{{Narbonic}}'' invented a self-cooling soft drink in a non-canon storyline. The problem (or rather, plan, since she's evil) was that it was STILL self-cooling inside the human body. 80% of the world's population died of hypothermia. Good thing it was non canon :p
* When in ''Webcomic/ElGoonishShive'', never accept a soda from Dr. Germahn. Odds are it'll shrink you but not your clothes. Granted, all he'll probably do is leer, so it's less "evil" and more "creepy", but still not a very pleasant experience.
* ''Webcomic/SluggyFreelance'' had the evil Hereti Corporation create the fast food chain House of Cheese. The food itself isn't harmful (at least not the stuff they give to the customers; a special pizza that instantly clogs arteries is reserved for their enemies), but the restaurant's ''logo'' is designed to [[BrainwashedAndCrazy trigger a homicidal response]] in the slightly unhinged [[PhlebotinumRebel fugitive experiment]] they're after. Once she sees a House of Cheese restaurant, she'll go insane and kill everyone inside, and Hereti Corp can use the series of fast food restaurant massacres to track her down.
** Just to drive the trope home, every pizza is served with a small toy, that can be ''poison'', or antidote. Explicitly labeled, for your convenience.
* In ''Webcomic/UserFriendly'', Pitr orchestrates a hostile takeover disguised as a merger between Pepsi and Coca-Cola, forcing them to produce Pitr-Cola, whose only ingredients are [[http://ars.userfriendly.org/cartoons/?id=20020520 caffeine and blind obedience]].
* In ''Webcomic/{{Goats}}'', the transdimensional pudding has "evil" listed in the ingredients. [[http://goats.com/archive/990216.html Right after riboflavin.]]
* One fairly early ''Webcomic/BrunoTheBandit'' story arc involved a fast-food chain called Archio's, which was founded by a chaos demon. When a counterperson said "May I take your order?", if the customer replied "yes" then once they got the food home they turned into a mumbling shapeless blob. In a later arc the same chain sold shake-like concoctions made from bits of Archio's son Croatoan, which made habitual consumers morbidly obese by basically sitting around in your body forever and ever without being digested or excreted.
* In ''Webcomic/{{Nodwick}}'', a brand new ''curse word'' ("Krutz!") has a marketing campaign (complete with informative pamphlets), it's bizarrely addictive to anyone who uses it, and it has a strange ability to actually relieve the speaker of whatever stress is bothering them. After saying it, a dragon even stops caring that it's dying slowly from internal injuries after the roof of its lair collapses on top of it. [[spoiler:It's a magic word that the villains have invented to siphon off all the anger, fear, pain, and other negative feelings of anyone who says it, to power a dark magic ritual.]]
* In ''Webcomic/GirlGenius'', Othar Trygvassen ([[CatchPhrase GENTLEMAN ADVENTURER!]]) worries about [[http://www.girlgeniusonline.com/comic.php?date=20110302 beer quality in Castle Heterodyne]], [[ArsonMurderAndJaywalking among other things]].
--->"We are in Castle Heterodyne with exploding collars around our necks, caught between a fake Heterodyne and a real one. (As well as assorted criminals, maniacs and various monsters.) And I suspect that [[INeedAFreakingDrink even if we found any beer in here]], it would be evil or, at the very least, ''flat''."
[[/folder]]

[[folder: WebOriginal]]
* The [[http://burgrr.com burgrr.com]][[http://bogleech.com/burgrr-walkthrough.html ARG]] is ''all'' about this trope, what with [[spoiler: the interdimentional fast-food franchise selling brainwashing "food" that eventually turns you into the host for a type of [[ChestBurster brain parasitoid]] that then goes on to be processed and sold to yet another unknown world]]
[[/folder]]

[[folder: Western Animation ]]
* Renuyu in ''WesternAnimation/BatmanTheAnimatedSeries'' allowed anyone to look young again... but if you stop using it, you suffer horrible pain and deformity. When an overdose was applied to a particularly recalcitrant actor, he became Clayface.
** Your mileage may vary. Matt Hagen, the actor, was using the material to hide the injuries he sustained in an accident. It's up in the air how much of the his pain/deformity was caused by the original scars or related angst, and how much was directly caused by Renuyu
* Power-8 from ''WesternAnimation/XMenEvolution'' was a delicious, refreshing sports drink - unless you happened to be a mutant, in which case it was poisonous.
* In one episode of ''WesternAnimation/KimPossible'', Drakken develops "Dr. Drakken's Brainwashing Shampoo and Cranium Rinse", which does [[ExactlyWhatItSaysOnTheTin exactly what it says on the bottle]]. He then attempts to market it; this is a complete failure, both for the obvious reason and because he put his face on the bottle. (Notably, Drakken consciously refuses to re-brand the product to make its evil nature less obvious -- because [[EvenEvilHasStandards he believes in truth in advertising.]] [[ImADoctorNotAPlaceholder He's a supervillain, not a]] [[CorruptCorporateExecutive corporate shyster]]!) He then attempts to work out a ProductPlacement deal with a rapper; when she's not interested, he decides to promote the product ''himself'' by appearing on ''[[Series/AmericanIdol "American Starmaker"]]'' and singing about it. HilarityEnsues.
* In ''WesternAnimation/{{Squidbillies}}'', Dan Halen Industires marketed Glug, a soda (actually moonshine) that makes people blind that so that the CEO can rob them. They also sold a body spray that causes hallucinations and melts human flesh.
* ''WesternAnimation/{{Futurama}}'' had Slurm, a soda advertised with the slogan "It's highly addictive!"
** The Slurm episode also parodies this with Soylent Cola, the taste of which "varies from person to person".
* ''WesternAnimation/ChopSockyChooks'' got jobs at Wasabi Burger to discover why they were so addictive. Turns out the special sauce was made from used body fat sucked out of Lipo Lounge customers. This made it an {{Anvilicious}} lesson on eating properly.
* An episode of ''WesternAnimation/TheSimpsons'' had a health drink distributed around town which accidentally contained [[MushroomSamba peyote]].
** Then there's tomacco; the disgusting tasting but hideously addictive tomato-tobacco hybrid.
** Any edible product endorsed by Krusty The Clown is likely to make you sick. It's also likely to contain ingredients that aren't technically food.
* One episode of ''WesternAnimation/ArchiesWeirdMysteries'' involved an energy drink that when drank turned certain people (about one in every 10,000) into hulking monsters (like, literally [[TheIncredibleHulk Hulking]]). [[spoiler:In a twist, the company had no intention of doing so, and immediately fixed the problem when Archie told them. However, they kept the whole fix secret to save their reputation, so the episode ends with them convincing Archie not to tell the public as hundreds of people would lose their jobs if the company went down.]]
* ''WesternAnimation/TheOblongs''. The kids get rich selling a sugar-laden energy drink everyone loves. It's obvious the drink is a horrifically unhealthy mess, but it turns out to be much, much worse. They used discarded 'morphine bottles' from the local hospital for their containers; the remnants of the morphine is what the people really wanted.
* ''WesternAnimation/TheFairlyOddParents'' had this with lemonade from Cosmo's stinky feet. The evil came around because Timmy temporarily valued cash more than his friend.
** However, the problem was that the lemonade would randomly fulfill the drinkers' wishes (often without the wish needing to be stated, even), resulting in chaos.
* ''WesternAnimation/DrawnTogether'' had an episode where the villain's conspiracy was to ship grape menthol pencils for students writing [=SAT=]s, so that [[RefugeInAudacity the black ones would fail, stay stupid, and keep buying overpriced bling]].
* An episode of ''WesternAnimation/{{Grossology}}'' had Sloppy Joe starting his own fast food chain that sold food that was addictive so people would eat more of it, thereby creating more garbage.
* ''WesternAnimation/DannyPhantom'' had Ember [=McLain=], a ghostly rock star who used her music to MindControl people.
* ''WesternAnimation/JimmyTwoShoes'' has pretty much every product manufactured by [[MegaCorp Misery Inc.]]
* On ''WesternAnimation/PhineasAndFerb,'' Doof may try this if he ever actually ''tries'' [[CutLexLuthorACheck to sell anything]]. He's tried to use mind-controlling songs at least twice, for example.
** ''[[http://phineasandferb.wikia.com/wiki/My_Name_is_Doof His name is Doof and I'll do what he says, whoop whoop!]]''
* ''Franchise/GIJoe'' sees Cobra try this twice: Once with mind control music in "Cold Slither" and once with brainwashing personal products in "Let's Play Soldier"
* The ''WesternAnimation/TotallySpies'' episode "Passion Patties" has the Spies investigating a new super-addictive (and [[TemporaryBulkChange super-fattening]]) cookie being sold by [[ScoutOut the Happy Girls]], which were the result of a mad scientist (and disgruntled ex-Happy Girl) putting an additive in the cookies.
* ''WesternAnimation/ScoobyDooMysteryInc'': In "When the Cicada Calls", Destructdo is making snack foods that contain toxic waste landfill.
* ''WesternAnimation/{{Arthur}}'' has a new candy bar called Big Boss bars. The bars make the kids experience happiness, but wind down and go depressed unless there's more. [[DoesThisRemindYouOfAnything Binky even capitalizes it buy reselling the bars at a higher price.]] It turns out that the bars contain insect parts, chemicals and [[WhatAnIdiot radioactive elements.]] Naturally, the company that makes it shuts down when word gets out.
* ''WesternAnimation/YoungJustice: Invasion'': The Reach soft drink is designed to mutate human DNA over several generations, making humanity loyal to the Reach.
[[/folder]]

[[folder: Real Life ]]
* Coca-Cola used to contain a small amount of [[http://www.snopes.com/cokelore/cocaine.asp cocaine]]. Should also be noted that Cocaine wasn't exactly considered evil [[ValuesDissonance at the time.]] It was, in fact, invented as a [[IfItTastesBadItMustBeGoodForYou more pleasant way to take one's medicine]].
* WebGame ''{{VideoGame/Evony}}'''s real purpose is to install spyware on your computer. This is particularly insidious when combined with its [[ContemptibleCover infamously]] [[SexSells naughty]] [[ShmuckBait ad campaign.]]
[[/folder]]
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