I Am a Real Vampire
I'm getting fairly irritated at seeing the, "What can I do to substitute my feedings," and, "How do you stop your cravings," questions popping up on here. Its like seeing someone spell the same word wrong over and over again, it makes you want to fix it. So I am.
There is no current substitute for blood. Blood delivers oxygen to vital organs, fights infection, and heals wounds. Technology has advanced significantly but even with the understanding of how blood works, there is no substitute yet that can recreate all of its properties and virtues. (i.e. Blood donors are needed to save lives. If feeding could be replaced or substituted, then so could blood donors.)
Many biotech companies have attempted to manufacture an artificial alternative for blood but all results have failed. Real blood transports oxygen throughout the body, containing platelets, red blood cells, and clotting factors, white blood cells and electrolytes, as well as myriad vital proteins that no substitute has fully been able to produce.
In short, there is absolutely no substitute for naturally produced blood. The closest thing to a substitute you could get for human blood would be animal blood.
One of the first blood transfusions ever to take place with a human recipient had the donor of a sheep. The recipient lived. Jean Babtiste, the physician that enacted this transfusion, also used this exact same method on several other patients, only stopping when one died. Not known at the time, but this was to blame for the different types of blood (A, B, AB, and O). (This was stopped and made into an only human thing, however, because it made survival rates more likely.)
This of course doesn't matter for the digestion of blood because it isn't going into your blood stream like in a donation. It would be more along the lines of tasting different foods. However, only mammals can replace mammals.
An avian creature, for example, has a nucleus attached to each of its red blood cells, while mammals only have a nucleus attached to the younger blood cells, which disappears after they fully mature.
You also cannot "suck a human dry". It's ridiculous to think you can drink every ounce of blood in a human leaving a pile of skin and bones. Being a vampire does not make your stomach bigger, you can only hold so much inside of it.
The human body contains roughly 10 pints of blood. Unless you are sharing, which vampires normally do not do, you will not consume all 10 pints from that person. It is not physically possible.
http://stanmed.stanford.edu/2013spring/article2.html
There is no current substitute for blood. Blood delivers oxygen to vital organs, fights infection, and heals wounds. Technology has advanced significantly but even with the understanding of how blood works, there is no substitute yet that can recreate all of its properties and virtues. (i.e. Blood donors are needed to save lives. If feeding could be replaced or substituted, then so could blood donors.)
Many biotech companies have attempted to manufacture an artificial alternative for blood but all results have failed. Real blood transports oxygen throughout the body, containing platelets, red blood cells, and clotting factors, white blood cells and electrolytes, as well as myriad vital proteins that no substitute has fully been able to produce.
In short, there is absolutely no substitute for naturally produced blood. The closest thing to a substitute you could get for human blood would be animal blood.
One of the first blood transfusions ever to take place with a human recipient had the donor of a sheep. The recipient lived. Jean Babtiste, the physician that enacted this transfusion, also used this exact same method on several other patients, only stopping when one died. Not known at the time, but this was to blame for the different types of blood (A, B, AB, and O). (This was stopped and made into an only human thing, however, because it made survival rates more likely.)
This of course doesn't matter for the digestion of blood because it isn't going into your blood stream like in a donation. It would be more along the lines of tasting different foods. However, only mammals can replace mammals.
An avian creature, for example, has a nucleus attached to each of its red blood cells, while mammals only have a nucleus attached to the younger blood cells, which disappears after they fully mature.
You also cannot "suck a human dry". It's ridiculous to think you can drink every ounce of blood in a human leaving a pile of skin and bones. Being a vampire does not make your stomach bigger, you can only hold so much inside of it.
The human body contains roughly 10 pints of blood. Unless you are sharing, which vampires normally do not do, you will not consume all 10 pints from that person. It is not physically possible.
http://stanmed.stanford.edu/2013spring/article2.html