The Prime Minister has in part blamed his weight for falling so ill due to the coronavirus.
While exactly what causes individuals to respond to the illness in different ways is unknown, but it is thought being overweight increases risk.
Boris has said: “When I went into ICU, when I was really ill … I was way overweight.”
He told Andrew Marr on his programme: “When I got this wretched thing, I was too fat. If I may, it is a teachable moment for our great country.
“Alas, as a nation we are slightly too fat. Fatter than everyone in Europe – aside from the Maltese for some reason.”
Since recovering though, he now claims to be “fitter than several butcher’s dogs”.