|“||The healing god food used in emergencies, when demigods are seriously hurt. Ambrosia will cure almost any injury, although too much can make a demigod feverish and kills mortals. At Camp Half-Blood ambrosia comes in squares in sealed bags. On Mount Olympus you can buy it on a stick.||”|
–Excerpt from The Ultimate Guide, explaining ambrosia
In Greek mythology, Ambrosia was the food eaten by the gods, usually presented in small cubes. It gave immortality to whoever ate it (although not in the Percy Jackson universe). It is closely related to Nectar. Ambrosia was fed to wounded demigods to heal their injuries.
Ambrosia is used as healing food to be used when someone gets injured in battle. Demigods can consume it, but if they have too much it can make them feverish and mortals can't eat it at all without it, "turning their blood to fire and bones to sand". It takes the taste of the user's favorite foods.
Piper McLean eats part of an ambrosia square when she broke her foot after falling from Festus, saying that it tastes like black bean soup her dad, Tristan McLean, used to make for her when she was ill.
Annabeth Chase eats ambrosia when she falls from a height and twists her ankle. It reminded her of the popcorn she had eaten once when she had gone to the movies with her father. Jason Grace is fed ambrosia by Piper McLean after harnessing the southern venti.
Ambrosia is the food of the gods and is usually reserved for their meals. However, demigods normally have some with them, as it has a healing effect on them. Demigods are the only type of mortals that are able to eat Ambrosia, as if a human ate some, they would literally burn away as the food is too powerful for them. Monsters as well are unable to eat the food without perishing. However, eating too much ambrosia at one time can cause a demigod to become feverish, as if they are burning up from the inside out. In small doses, ambrosia is able to heal a demigod of small injuries, like cuts, bruises, and fatigue. More severe injuries, like a broken ankle for example, need more time and could take up to a day to fully heal. When eaten, ambrosia normally tastes like a pleasant food enjoyed by the consumer. For Percy, it was warm chocolate chip cookies, while for Piper it was the black bean soup her father used to make her. For Jason, it tasted like the brownies from one of New Rome's bakeries, but it tasted more bitter than he remembered because he was 'not quite Roman anymore'.
|Personal Weapons:||Riptide | Annabeth's Knife | Backbiter | Frank's Spear | Hazel's Spatha | Katoptris | Nico's Sword | Thalia's Spear | Aegis | Maimer | Kronos' Scythe | Ivlivs | Master Bolt | Poseidon's Trident | Sword of Hades | Reyna's Spear | Hades' Staff | Juno's Gladius | Drakon Bone Sword|
|Magical Items:||Annabeth's Yankees Cap | Helm of Darkness | Keys of Hades | Flying Chariot | Golden Apple | Greek Fire | Hermes' Multivitamins | Leo's Magical Toolbelt | Nectar and Ambrosia | Pandora's Pithos | Winged Shoes | The Golden Fleece | Stygian Ice Whistle|
|Spoils of War:||The Minotaur's Horn | Medusa's Head | Kampê's Scimitars | Nemean Lion's Pelt | Gorgon Blood | Cornucopia|
|Items:||Camp Necklace | Chameleon Armor | Daedalus' Laptop | Golden Drachma | Mark of Athena | The Pax | Video Shield | Wristwatch Shield | Golden Mango | Sibylline Books|
|Blessed Metals:||Celestial Bronze | Imperial Gold | Stygian Iron|