The legendary musician - who has battled alcohol and cocaine addictions, as well as the eating disorder bulimia in the past - admitted his "tragic" life come "very close" to ending at the height of his drug problem.
When asked how close his addictions came to killing him, Elton replied: "Very close. I mean, I would have an epileptic seizure and turn blue, and people would find me on the floor and put me to bed, and then 40 minutes later I`d be snorting another line.
"This is how bleak it was, I`d stay up, I`d smoke joints, I`d drink a bottle of Johnnie Walker and then I`d stay up for three days and then I`d go to sleep for a day and a half, get up, and because I was so hungry, because I hadn`t eaten anything, I`d binge and have like three bacon sandwiches, a pot of ice cream and then I`d throw it up, because I became bulimic and then go and do the whole thing all over again.
"That is how tragic my life was."
The 63-year-old singer - who suffered from a drug overdose in 1975 - admitted despite his vices, he never considered himself to be a drug addict.
Speaking to Piers Morgan as part of his `Life Stories` series, Elton added: "I`m not being flippant when I say that when I look back I shudder at the behaviour and what I was doing to myself. It just takes over your whole psyche, this stuff.
"I never considered myself a drug addict, I thought drug addicts were people who stuck needles in their arms. And I was the biggest junkie there was."