Boris Johnson shares illness that's impacting his career – all the details

Prime Minister Boris Johnson was interviewed by Susanna Reid on GMB last week, with many viewers disappointed by his appearance.

MORE: GMB's Richard Madeley replaced by Martin Lewis - and viewers are saying the same thing

The politician's aides sprung to his defence, explaining that the PM has been unwell ahead of his slot on the show. "He had food poisoning," an aide told the Sunday Times. "He was throwing up and had to change his suit because he got sick on his lapel."

WATCH: Boris Johnson doesn't know who Lorraine Kelly is

During the car crash interview, Boris left viewers amused after he failed to acknowledge who Lorraine Kelly is, asking Susanna "Who's Lorraine?" as Susanna handed over to the presenter for her show, which follows GMB in the morning schedule.

MORE: Susanna Reid and Lorraine Kelly react to Boris Johnson snub live on-air

READ: Susanna Reid inundated with messages following major GMB shake-up

The PM's spokesperson was forced to defend him over this misunderstanding, commenting: "The Prime Minister wasn't fully across ITV's daytime line-up this morning, but you'll appreciate he has a number of issues to deal with," according to The Telegraph.

Lorraine and Susanna joked about the PM's lack of knowledge of daytime TV.

Boris Johnson was interview by Susanna Reid on GMB

On Wednesday morning, Susanna addressed Boris' comment, saying: "I'm looking forward to talking to Lorraine. I always say there is a Lorraine moment every morning but my goodness, yesterday's Lorraine moment was the one to end all Lorraine moments.

MORE: Lorraine Kelly makes cheeky dig at Boris Johnson on-stage at TV BAFTAs

The 62-year-old replied: "It was very funny. Look, I don't expect people to know who I am, I really, really don't but I just thought that was - Do you not think, Susanna, he thought I was waiting in the wings to jump on him, to interview him because he looked frightened as if I was going to run in? I don't know."

© Photo: Rex

Boris Johnson was unwell with food poisoning ahead of his GMB appearance

The GMB host responded: "I think he thought it was a joke to say that and I think he actually does [know who you are] because otherwise, he's the only person in the country who doesn't know who Lorraine Kelly is."

Like this story? Sign up to our HELLO! Mail newsletter to get other stories like this delivered straight to your inbox.