Jadrool is listed by aviation authorities as "Edible -- it won't kill you even though you wish it would."

Eating it produces permanent impotence in males, enhanced sexual drive in females when in the presence of males who have eaten jadrool (and only then), axillary warts, lingual paralysis, traffic-induced hallucinations, multilingual ability in non-existent languages, polylalia, renal artifacts of indeterminate age, hiccups, digital cramping during sexual activities, the inability to remember the rest of the song/music, cognitive dysfunction, innumeracy regarding wages, politically conservative remarks spontaneously expressed during labor union meetings and in similar settings, reversal of patellar function, dysplasia, endochronitis, permanent diarrhea, osculatory malfunction, CPD, TIA, and etc.

The taste is said to be something between road tar and very old road kill when fresh and worse when aged longer than one standard minute.