Media playback is unsupported on your device Media caption Trump says he needs to lose weight (2016)

Republican nominee Donald Trump is in "excellent physical health," according to a letter from his doctor.

Mr Trump released the note following a recent physical examination by Dr Harold N Bornstein.

The 70-year-old is listed as 6ft 3in (1.9 metres) and weighing 236lb (107kg).

The letter came as his rival Hillary Clinton returned to the campaign trail after time off with pneumonia appearing in North Carolina and Washington.

Boarding a plane in White Plains, New York, she spoke to journalists as she flew to North Carolina to hold a rally, her first campaign event since the weekend.

Clinton 'doing great' back on the trail

A history of US presidential bad health

Both candidates have faced public scrutiny over transparency about the state of their health.

Media playback is unsupported on your device Media caption Hillary Clinton told reporters on her campaign plane: "I am doing great"

"He takes a lipid lowering agent (rosuvastatin) and a low dose aspirin," the letter said. "He does not use tobacco products or alcohol."

His weight and height give him a body mass index of 29.5, according to US measurements, which is within the "overweight" range but close to the "obese" mark at 30.0.

Mr Trump discussed his health with talk-show host Dr Mehmet Oz in a taped interview, which aired on Thursday.

Analysis - Anthony Zurcher, BBC News, Washington

It's almost too perfect. The reality-TV-star-turned-politician sharing his medical information with the celebrity-doctor-turned-daytime-talk-show-host.

Mr Trump promised he would release information from a physical exam some time this week, and on Thursday - in a press release and a taped interview with Dr Mehmet Oz - he did.

Kind of.

We learned Mr Trump's vital signs are normal. He takes medication to keep high cholesterol in check. He passed all his cancer screenings He (perhaps not surprisingly) has higher than normal testosterone levels. He's a bit overweight and has a penchant for junk food. He says his exercise regimen consists of golf and giving political speeches.

Bornstein is the quirky man who made headlines last December when he claimed Mr Trump would be "the healthiest individual ever elected to the presidency". Bornstein later admitted he wrote that one-page, typo-ridden memo in less than five minutes.

In other words, this is hardly a full disclosure of Mr Trump's medical history. It's certainly in keeping with what has been an exceedingly bizarre US presidential campaign, however.

Image copyright Sony Image caption Donald Trump appearing on The Dr Oz Show to discuss his health

He first revealed the letter, which is dated 13 Sept, in his appearance on The Dr Oz Show.

"I feel as good today as I did when I was 30," Trump said on the show, according to a clip.

Dr Bornstein, a gastroenterological specialist at Lenox Hill Hospital in New York, has cared for Mr Trump since 1980, according to the letter.

The note continues to detail parts of Mr Trump's medical record, including that he was only in hospital once at age 11 for an appendectomy.

Although the letter provides some insight, it does not include his detailed medical history.

In an interview with the Washington Post released on Thursday night, Mr Trump revived debunked conspiracy theories about President Barack Obama's citizenship.

He refused to say whether he believes Mr Obama was born in Hawaii.

"I'll answer that question at the right time," Mr Trump told the newspaper. "I just don't want to answer it yet."

He also declared he was winning over the black electorate, saying he had "come up with African American voters like a rocket ship".

In other developments:

Ivanka Trump cut short an interview with Cosmopolitan after objecting to the questions

Mr Trump's son, Donald Trump, Jr, denied anti-Semitism after he accused the media of not holding Democrats to account, adding: "If Republicans were doing that, they'd be warming up the gas chamber right now"

He also said his father had declined to release his tax returns because they would only distract from his main message, according to the Pittsburgh Tribune-Review

Republican House Speaker Paul Ryan said Mr Trump should release his tax returns, but would leave the timing of it up to him

The polls indicate a tight race nationally and in the key battleground states, with 54 days to election day.

What you need to know about US election

Media playback is unsupported on your device Media caption Why some states matter more than others

How does the US election work?

Why this election will make history

What is it about Clinton that her fans love?

50 Trump supporters explain why they back him