>>8659500 PB notable

From google answers!!!!

Does drinking blood help porphyria?

In most cases of porphyria, blood or heme transfusions can supply some relief from the symptoms, and this is still the mainstay of treatment. … This means that, in principle, it is possible to relieve the symptoms of porphyria by drinking blood–another possible link with the vampire stories.Dec 16, 2002

Born to the Purple: the Story of Porphyria - Scientific American