Surely eating so much metal could kill you?

just been reading this :- France’s Michel Lotito's diet since 1966 included 18 bicycles, 15 supermarket trolleys, seven TV sets, six chandeliers, two beds, a pair of skis, a low-calorie Cessna light aircraft and a computer. He is said to have provided the only example in history of a coffin (handles and all) ending up inside a man. By October 1997, he had eaten nearly nine tons of metal