Donald Trump, the US Republican presidential nominee, reportedly revealed that he has high testosterone levels and is borderline obese during a discussion of his recent medical examination for a television chat show.

He was interviewed on Wednesday by Mehmet Oz, host of the Dr Oz show, about the health check-up results and his diet and exercise routines.

The interview will air on Thursday, but attendees of the taping said Mr Trump discussed his desire to lose 15 to 20 pounds.

He also reportedly said he does not exercise, but is so good at golf that he could play professionally. He used to have high cholesterol, audience members relayed, but was put on a Statin drug to bring it down to its current, healthy level.

Mr Trump has a body mass index (BMI) of 30, according to the audience members. A BMI of 25-29 is considered overweight, while a BMI of 30 or above is considered obese according to the NHS