Self-Sustenance

Self-Sustenance
Neil Cuddahy (Mutant X) has the ability to go without sleep while maintaining optimal mental faculties and health.
Power/Ability to:	Reduce/remove the need for bodily necessities.

The power to reduce or remove the need for bodily necessities.

Also Called

• Contained Metabolism
• Deprivation

Capabilities

Users physical needs are greatly reduced or completely removed. These needs include air/breathing, sleep/rest, food, drink, bodily evacuations, shelter from environmental effects and their lack (heat/cold, dryness/wetness), etc. User is also able to stay immobile without the normal effects this would have.

Applications

• Digestive Expulsion Negation
• Enhanced Lung Capacity/Oxygen Independence
• Hunger Suppression/Negation
• Perpetual Nourishment
• Sleeplessness
• Temperature Regulation/Immunity

Associations

• Discomfort Immunity
• Dependency Transcendence
• Energy Independence
• Enhanced/Supernatural/Absolute Condition
• Environmental Adaptation
• Hibernation
• Immortality
• Pain Suppression
• Regenerative Healing Factor
• Self-Sufficiency

Limitations

• May only be able to disregard some needs.
• May have limited time period available.
• Disregarding some needs may cause certain capacities to degrade, regardless of maintaining stable health. Eg: Forgoing eating may lead to muscular dystrophy, etc.

Known Users

See Also: The Needless and Perpetual Motion Monster.

Literature

• Sally Sandwich (Sweet Story)
• Timmy Taco (Sweet Story)

Movies/Television

• Hypercognitive Alphas (Alphas)
  • Stanton Parish (​Alphas)
• Adam (Buffy the Vampire Slayer)
• Davros (Doctor Who)
• The Golden Army (Hellboy II)
• Neil Cuddahy (Mutant X)
• Angels (Supernatural)
• Changelings (Star Trek)
• Borg Drones (Star Trek); only when connected to the Collective
• Data (Star Trek)
• Jem'Hadar (Star Trek); only when supplied with Ketracel White
• Terminators (Terminator)
• Daggon/Cole Hauser (Tracker)
• Hybrids (Twilight Saga)

Cartoons

• Kevin Levin (Ben 10); in his Ultimate form
• Professor Paradox (Ben 10: Alien Force)
• Vlad Masters/Plasmius (Danny Phantom)
• Emotions (Inside Out)
• Aku (Samurai Jack)
• The Guardian (Samurai Jack)
• Gems (Steven Universe)

Comics

• Kryptonians (DC Comics); under a yellow or blue sun
• Doomsday (DC Comics)
• Firestorm (DC Comics)
• Martians (DC Comics)
• Captain Atom (DC Comics)
• The Flash (DC Comics)
• Dr. Manhattan (DC Comics)
• Amazons of Themyscira (DC Comics)
  • Hippolyta
• Midnighter (DC Comics/Wildstorm)
• Mr. Majestic (Wildstorm/DC Comics)
• Supreme (Image Comics)
• Emma Frost (Marvel Comics); in diamond form
• Stepford Cuckoos (Marvel Comics); in diamond form
• Colossus (Marvel Comics); in Steel form
• Original Xorn (Marvel Comics)
• Sprite/Jia Jing (Marvel Comics)
• Hulk (Marvel Comics)
• A-Bomb (Marvel Comics)
• Skaar (Marvel Comics)
• Adam Warlock (Marvel Comics)
• Dead Girl (Marvel Comics)
• Heralds of Galactus (Marvel Comics)
• Asgardians (Marvel Comics)
  • Thor Odinson
• Olympians (Marvel Comics)
• Sentry (Marvel Comics)
• Sunspot (Marvel Comics)
• Hyperion (Marvel Comics)
• Chamber (Marvel Comics)
• Reed Richards/Mr. Fantastic (Ultimate Marvel)

Manga/Anime

• Empty Cans (Akikan!)
• Titans (Attack on Titan); only need sunlight to stay active
• Pseudomonas (Cells At Work)
• Klaxo-Sapiens and Klaxo-Sapien Hybrids (Darling In The FranXX)
• Shinigami (Death Note)
• Asato Tsuzuki (Descendants Of Darkness)
• Artificial Humans (Dragon Ball)
• Namekians (Dragon Ball series)
• Majin Buu (Dragon Ball series)
• Isaac Netero (Hunter X Hunter)
• Obito Uchiha (Naruto)
• Black Zetsu (Naruto)
• White Zetsu clones (Naruto)
• Genos (One-Punch Man)
• Demon Lord (Sekai Maou)
• Ryoko Hakubi (Tenchi Muyo)

Video Games

• Skeletons (Crypt of the NecroDancer)
• Necromorphs (Dead Space)
• Ghouls (Fallout)
• Reapers (Mass Effect)
• Porygon, Porygon2 & Porygon-Z (Pokémon)

Tabletop Games

• Vampires (Vampire the Masquerade); only need blood to stay conscious

Other

• SCP-017 - Shadow Person (SCP Foundation)
• SCP-122-1 - No More Monsters (SCP Foundation)
• SCP-280 - Eyes in the Dark (SCP Foundation)

Known Objects

• Mayan Sun Amulet (Gargoyles)
• Ring of Sustenance (Overlord)

Gallery

Due to the effects of yellow sun radiation, Superman (DC Comics) has no need for food or sleep, though he tends to eat and sleep out of habit.

As long as the Amazons (DC Comics) stay on Themyscira, they don't require food, water or any other form of nourishment to maintain their health and vitality.

Olympians (DC Comics)

Shinigami (Death Note) have no need to eat nor sleep, but do so to enjoy the sensation and laziness. They do, however, need to use the Death Note to extend their lifespan.

Artificial Humans (Dragon Ball) like #16, #17, and #18 have an infinite energy reservoir, and thus, no need to sleep or eat.

Namekians like Dende (Dragon Ball series) do not need food to survive; they can subsist solely on water.

Majin Buu (Dragon Ball series) has no need to breathe, sleep, or eat and has limitless stamina. While he does greatly enjoy eating, he only requires to hibernate on occasion.

Ultimate Mr. Fantastic's (Marvel Comics) organs have been replaced with a "bacterial stack"; as a result, he has no need for food, water, or even oxygen.

Hashirama Senju's DNA cells allowed Obito Uchiha (Naruto) to survive without food or water.

Zetsu (Naruto) are self-sustained, as Black Zetsu is an artificial human created from Kaguya's materialized will, while White Zetsu are mutated humans. Although, White Zetsu can devour corpses to dispose of evidence.

Because Timmy Taco wished that he and Sally Sandwich (Sweet Story) would be "married forever", it made it so that neither could ever die - including immunity to the effects of starvation or thirst - the wish making sure that their marriage does not end through death do [they] part.

Gems (Steven Universe) are an alien race of functionally-immortal polymorphic Gemstones. They do not need to eat, drink, sleep or breath, and can recede into their gems should their bodies be mortally wounded to heal.

Ultimate Kevin (Ben 10 Ultimate Alien)

Olympians (Marvel Comics)

Through methods not understood by other races, Reapers (Mass Effect) perpetually generate nigh-limitless amounts of energy, making a war of attrition against them impossible. A single Reaper can live for millions of years without needing any kind of fuel or sustenance.

As a human-vampire hybrid, Renesmee Cullen (Twilight) has a beating heart that pumps blood in her system, making her independent of blood.