The T4 presenter said he struggled to cope when he quit his 40-a-day habit three years ago.
He told Attitude: "I went through hell for six months. I went to a really dark place. I can’t remember a thing, I was that drunk.
"I thought: 'To take away smoking, Jesus, is there any point going on?' I felt really depressed about it."
The 31-year-old added: "I replaced every cigarette I would have with a tequila shot. I ate and put on weight."
However, he insisted that his health is now better than ever before, saying: "I came out the other side, I got my s**t back together and hit the gym."
> Click here for our interview with Steve Jones and T4 co-host Miquita Oliver