Donald Trump has made a bizarre confession about his own health at an event at the White House.

The US president was addressing a group of firefighters when he went on a tangent about personal vices.

“If you don’t drink or you don’t take drugs or if you don’t smoke, there’s no problem,” Trump said.

“I have other problems, I have some very severe problems. But those are not one of them.”

“I don’t want to add them to the list, 'cos if I did I guarantee I wouldn’t be here right now.”