Nick Knowles "struggled" to eat for five days when he returned from the 'I'm A Celebrity... Get Me Out Of Here!' jungle.
Nick Knowles
The 56-year-old TV presenter finished sixth on the ITV series, and now the star has revealed that his body went into a five-day fast and was in "super-shock" because it was "terrified" of having to ration food again.
Speaking on 'This Morning', Nick said: "[I lost] 14-and-a-half kilos in 20 days. I lost a kilo a day.
"It was very, very intense, and I have to say of all the stuff I've ever done, that was the most difficult.
"But weirdly the stuff that wears you out is the stuff you don't really see on the programme.
"It's going backwards and forwards, up the huge long flight of stairs to get the water and the logs. You can't sit around and lose almost a kilo a day.
"I really struggled [to eat] for about five days, and then I went into super-shock and I then ate and ate and ate, and put pounds back on - it's like my body is terrified it's going to happen again.
"We have a WhatsApp group with all the guys together and we're texting each other at four in the morning saying 'Someone stop me eating!' "
Nick also confessed that the 'I'm A Celeb' production team would go to any lengths to "get under" the celebrities' "skin", however, it made their bond together stronger.
He added: "We said, 'They're going to do anything they can to get under our skin, so if we get tighter the tougher it gets for them.'
"They try to get you under your skin - they make you tired, they make you hungry, it's us versus them.
"You set yourself up, it's not us versus the production team but if you get into that mind-set you bond together."
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