Phillip Schofield has revealed he's lost over one and half stone on the '5:2' diet but it has left him experiencing hallucinations.
The 52-year-old 'This Morning' presenter says the extreme diet - which involves fasting two days a week - has left his stomach so small that he now has trouble putting any weight ON.
During an interview with Alan Carr on tonight's (Friday 13 June) 'Chatty Man', Phillip said: “I saw a picture and thought, ‘You look a bit porky’.
“I wanted to be 11st. It took nine or ten months and now I am.
"My stomach is now so small I have hardly any appetite and can’t keep weight on.
“People say, ‘Are you alright, are you alright?’”
He added: “I have had hallucinations.”
Despite his drastic weight loss, Phillip says he isn't a yo-yo dieter, saying fad diets don't work for him.
He told The Mirror earlier this year: "I don't do fad diets. I can't bear to say 'Let's eat cabbage' or 'Let's eat no fat or no carbohydrates'."
"All that isn't normal. For me this is very workable. I like the science behind it."
"It makes perfect sense that your body uses the resources it has got and it goes into repair mode."
"What is amazing is how used to it you become. They say you can eat whatever you lil on the other days, but the thing is your stomach does shrink."