Bill Turnbull, 63, revealed in March 2018 he had been diagnosed with incurable prostate cancer the previous November.
The former BBC Breakfast presenter, who was on the show for 15 years, has been undergoing treatment ever since, which has included hormone therapy and nine rounds of chemotherapy, plus other operations.
He has also had three, six monthly doses of Radium 223, a “radiotherapy injection aimed at controlling the tumours in his legs, hips and pelvis”, Bill told Radio Times.
But after the first on, the Classic FM radio host explained he had a “tumour flare” which resulted in a “strong pain” in his knee.
“It seeks out the bone tumours and tries to destroy them,” he explained in an interview with the publication.
“It works to a limited degree. I had a bit of a tumour flare after the first one, a strong pain in my knee, and I thought it might be something to do with alcohol, so I’ve given that up, except for the odd glass of wine.”
Bill appeared via video link on BBC Breakfast during the week, where he gave an update to presenters Dan Walker and Naga Munchetty about how he’s currently feeling.
The father-of-three revealed he has made many changes to his lifestyle to help towards his recovery.
Bill said he has almost gone off meat entirely and given up alcohol in a complete overhaul.
“I used to be very fond of meat, I’ve given it up largely, and I’ve given up alcohol as well, which will come as a surprise to you,” he said.
“But I feel much better for it – you have to do these things.”
Bill divulged to the BBC Breakfast pair that he was feeling “very well” but had been battling a bug which was why he couldn’t appear in the studio.
He went on to say: “I’ve had no aches and pains for a long time and I feel remarkably cheerful and healthy.
“I’ve been off chemotherapy for more than a year so I’ve recovered from that and I’ve started on something else.”
Later in their chat, Bill explained what he would change if he could go back again.
He admitted: “I would have gone to the doctors a lot more.
“I went when I was 40, I was fine; I went when I was 50, I was fine – I thought I was going to be alright.”
He added: “I’m going to live for as long as I’m going to live for. Whatever happens, happens. If I can help make myself better than great.”
Naga appeared a little emotional as she said goodbye to her former co-star: “I love you, Bill. Miss you. I’m sending you a big hug.”
Bill Turnbull’s battle with prostate cancer was documented in his new show, Bill Turnbull: Staying Alive, aired earlier in the week on Channel 4.