Davina McCall said beating her addiction to heroin made her a "much stronger" person.
The 53-year-old TV presenter has previously discussed her battle with drugs during her 20s, and in a new interview, she said overcoming her addiction has made her more determined.
During an interview for Advertising Week Europe 2021, Davina said that in the throes of her addiction, she loved heroin more than her family, and is relieved she managed to kick the habit before things went too far.
"I dealt with a very difficult, alcoholic, drug-addict mother and in turn ended up a drug addict myself. But it's just made me a much stronger person and a person that doesn't take no as the end of the line," the former Big Brother presenter explained.
"I was a heroin addict - that was my drug of choice. I loved heroin, more than my family, more than myself. I hated myself, but I loved heroin more than anything. I would have stolen, I would have got myself into terrible mixes to try and get it or have it or get money to have it," Davina added.
"Getting through that, going to go into Narcotics Anonymous meetings, made me realise that if I can get through that I can pretty much get through (anything)," the mother-of-three said.
Davina also touched upon her hugely successful range of fitness DVDs and healthy, sugar-free cookbooks, and said she never imagined she would be become a fitness expert.
"If you'd have said to me 20 years ago you're going to be fitness guru, I'd have literally laughed in (your) face. What I've realised in life is ... you might get on one path, and then something will happen and it will lead you to somewhere else, but you have to be open to opportunity," the Long Lost Family host shared.