Noel Edmonds has revealed he suffered from prostate cancer which he claims was helped cured by a box that "tackles cancer".
The Deal Or No Deal host was diagnosed on November 29 2013, after a routine health test picked up raised levels of prostate specific antigen (PSA) in his blood. He had no symptoms.
The 67-year-old alleged on This Morning that he had used the EMPpad, a machine which aims to stimulate "cellular resonance" in the body, as part of a regime to cure himself from cancer that he said was caused by stress.
He had come under controversy for suggesting a cancer sufferer's ill-health was caused by "negative energy" when he promoted the benefits of the £2,315 device on his Twitter account on Monday.
When host Phillip Schofield called the question "insensitive", Noel defended his claim.
He said: "As someone who until very recently had cancer, all I asked was a question."
Co-host Holly Willoughby asked if he would ask a child if their cancer was caused by negative energy.
He replied: "I think you're completely missing the point here. The point here is that when I found out I had prostate cancer, I went out there and started to ask as many questions as possible. I changed my diet, I exercised in a different way... I then had my tumour destroyed by sound waves, proving yet again energy is at the heart of this issue."
He continued: "I was, I thought, very, very healthy. I know why I got my cancer: because I had gone through a very stressful, very negative period in my life.
Phil asked: "The stress in your life gave you prostate cancer?"
He replied: "Yes, because the definition of stress is negative energy. It didn't just decide to manifest itself, there was cause.
"You have cancer in you, we all have it. Something triggers it, I don't believe what you say or think triggers it, but outside forces trigger it... All I want to encourage is get the information."
Phil repeated a statement from the makers of the EMPpad, which said they did "not agree with it (Noel's statement) in any way, shape or form".
He replied: "Fine, all I'm saying is, by using pulsed electromagnetism and a series of other things, I am now free of prostate cancer."
Noel said his father Dudley, who died of prostate cancer in 1990, died of "ignorance" as he urged people to seek a second opinion and not accept "convention" on diagnosis.
He said: "We don't understand energy, that's why we have quantum physics and a bunch of people in CERN (the European Organization for Nuclear Research) trying to understand it.
"The medical profession can't even define the exact definition of health, but I'm encouraging people please don't do what my father did and die of ignorance.
"I could have gone down the same route. I believe pulsed electromagnetism has a role to play in tackling cancer and I will always believe that."
Phil replied: "That's fair enough, there are many things we've been sceptical about in the past and we've been proved wrong."
EMPpad Limited said it does not pay the TV presenter to advertise the product. The company director is Maria Robertson, who has previously worked as an assistant to Noel.
ITV's Dr Ranj Singh said that "the vast majority of research (on electromagnetism) is poor quality and when it comes to cancer is even worse so I would be very careful taking things at first value when you go looking for that information".