Tarrare

Tarrare was a slender French man who lived in the 1700s. He had a bizarrely insatiable appetite which could never be satisfied. He would regularly eat a meal intended for 15 people in one sitting and under medical observation ate cats, snakes, lizards, puppies and an entire eel without chewing. He would scavenge for offal in gutters, rubbish heaps and outside butchers' shops, and attempted to drink the blood of other patients in the hospital and to eat the corpses in the hospital morgue. He was even suspected of eating a toddler.