Blood is life, lackbrain. Why do you think we eat it? It's what keeps you going, makes you warm, makes you hard, makes you other than dead.
Spike to Xander Harris on the nature of blood.[src]

Angelus' hand covered in a person's blood.

Blood was a specialized bodily fluid that delivered necessary substances to a body's cells – such as nutrients and oxygen – and transported waste products away from those same cells. It was found in most beings, including humans

Aside from its basic biological functions, blood was known for its numerous mystical properties, making it a key ingredient in many magical spells and rituals as well as a source of food.



  • Vampires were well known to feed on the blood of mammals. 
  • In order to make a new vampire, the sire would have to drink a large amount of the victim's blood before letting the victim drink some of theirs. 
  • The Archduke Sebassis kept a slave of the same species whose blood was regularly extracted from his body and made into a refreshment for his master.[1][2]
  • The consumption of blood could provide details about the person. Glorificus instantly determined that Tara Maclay wasn't the Key by licking her bloody hand[3] and Spike confirmed that Cordelia Chase wasn't a demon after drinking some of her blood.[4]


  • Mohra demon blood possessed potent healing properties and was even able to revert a vampire back into a human.[5][6]
  • The blood of the Slayer was the only known cure for the Killer of the Dead, a poison specifically designed to kill vampires.[7][8]

Power Granting

Uses in magic

Additional properties

  • According to Spike, blood smelled metallic, similar to a penny.[26]
  • According to Spike, demon's blood tasted astringent and oaky.[4]
  • Slayer's blood apparently was a great aphrodisiac.[27]
  • Eating the Doublemeat medley made the consumer's blood undesirable to vampires.[28]
  • Drinking blood could free the consumer from forms of mind control.[29][30]


While the majority of beings had red blood, blood could come in various colors depending on species. 


Behind the Scenes

In the 2002 non-canonical Buffy video game, a pair of vampires were seen discussing whether they should eat out at a drive-through because one of the vampires claimed that the blood of fast-food clerks tasted delicious, while the other vampire considered them too greasy because their high cholesterol gave him gas as a result.

See also


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