On Friday, the former ‘Made In Chelsea’ lothario left the jungle “on medical grounds”, just two days after arriving on the show as a late addition.
While his departure was initially shrouded in mystery, he’s now spoken out his steroid addiction, which he says was first sparked as he prepared for a charity boxing match.
In a statement to The Mirror, Spencer revealed: “Shortly after I arrived in Australia I told the production team that I was taking a steroid-based medication that had begun some weeks ago.
"When I started taking this programme of pills it was in preparation for a charity boxing match which, ironically, never took place.
Spencer continued: "My admission to the production team that I was still taking these pills led to the conclusion that it would be unsafe for me to stay in the jungle - a decision which I found extremely hard to stomach.
"I pushed back but ultimately the show's duty of care prevailed and bags had to be packed.”
Spencer with his fellow late entrants, Vicky Pattison and Ferne McCann
He went on to apologise to his friends and family, as well as his fans, adding: “Taking these pills was a serious error of judgment, which I hugely regret.
"I have disappointed my family, friends and fans and would like to apologise. I would like to thank ITV for the opportunity and their support, they're a class act.
"I loved every minute of being in the jungle and wish the remaining contestants the best of luck. Hoping for another shot at it someday."
Spencer recently confirmed that his appearance Down Under meant that he would no longer be appearing in ‘Made In Chelsea’, which he has appeared in since it first began airing on E4 in 2011.
‘I’m A Celebrity’ continues on Sunday night, at 9pm on ITV.