Operation Transformation leader John Conmy has confirmed he will be continuing his journey on the RTÉ One series.
The Mayo restaurant owner received shock health news on Thursday night's episode (January 7) after he was put through a fitness test that brought worrying results.
The 47-year-old dad's ECG test, which measures electrical activity in the heart, indicated "worrying irregularities" and left viewers questioning whether he would be able to continue in the show.
OT host Kathryn Thomas revealed after the test: "John is left with the shocking reality that his ability to continue as a leader and, more importantly, his future health could be at great risk."
She continued: "Before he can carry on with the programme, John will need to fully investigate these worrying results."
Speaking on The Ray D'Arcy Show on Saturday, John who is the heaviest contestant in this year's show weighing 22st 10lbs, said he was told by doctors that he has a heart condition called AFib (Atrial Fibrillation).
"We got on the phone to my GP in Belmullet and he rang my cardiologist in Galway. They got me organised and got me into a clinic in Galway two days later. Dr. Ciara Kelly came down and we had a chat and we went through everything with the cardiologist.
"It turns out I have a thing called AFib which is to do with the electric pulse in your heart - one or two of them are firing faster than they should be," he said.
When asked if he would be continuing to participate in OT, John said: "I'm carrying on - exercise is supposed to be good for it."
You can next catch Operation Transformation on Wednesday (January 13) at 8.00pm on RTÉ One.
