Blood drawn from live animals (cattle, horses, camels) has been a staple food of nomadic tribes (Mongols, Berbers, etc.) for thousands of years.
Rooster blood was the original thickener for the traditional French dish Coq Au Vin (Chicken in Wine)
Until fairly recently ox and bull blood was used as a fining agent to clarify wines. Dried bull blood was banned as a fining agent due to the Mad Cow Disease crises in Europe, and is now very rarely used elsewhere.
It would take about 1,200,000 mosquito bites to completely drain the average human of blood.
(Discover magazine, August 2007)
2,500 gallons of blood must flow through a cow's udder each day to maintain a production of about 6 gallons of milk per day. That's 10 tons of blood to produce 50 pounds of milk.
About 3 million medicinal leeches are produced each year at the International Medical Leech Centre in Russia. Hospitals around the world use them for tasks such as stimulating circulation after surgical reattachment of a severed finger or ear. In 2004 leeches were approved by the FDA as a medical device.
Discover magazine, Nov 2010
The first book published by Bram Stoker (1847-1912) was 'The Duties of Clerks of Petty Sessions in Ireland'. He is much better known as the author of 'Dracula' (1897), about the blood drinking vampire!
Chocolate syrup was used for the blood in the famous shower scene in the 1960 Alfred Hitchcock movie 'Psycho'. The scene lasts for about 45 seconds in the movie.
The juice of purple grapes seems to have similar effects in inhibiting blood clots and therefore heart attacks
Liver has great nutritional value. It acts as a blood filter to remove and process the nutrients the blood has absorbed from the intestines.