Donald Trump has put on some pounds and is now officially obese, according to the results of his latest physical exam.

But his doctor, Sean Conley, says the 72-year-old US President "remains in very good health overall".

Here's a look at his latest medical report card and how it's changed from last year.

Vitals:

Height: 190 centimetres

190 centimetres Weight: 110.2 kilograms (up from 108kg last year)

110.2 kilograms (up from 108kg last year) Resting heart rate: 70 beats per minute (up from 68bpm last year)

70 beats per minute (up from 68bpm last year) Blood pressure: 118/80mmHg (it was 122/74mmHg last year)

What's his BMI?

Mr Trump has gained 2.2kg since last year and now has a body mass index (BMI) of 30.4.

That means he's now officially considered obese, according to the formula used by doctors.

How do you work out your BMI? Measure your weight (in kilograms, to the first decimal place), making sure to remove external clothing.

Measure your weight (in kilograms, to the first decimal place), making sure to remove external clothing. Measure your height (in metres, to the second decimal place — for example, 177 centimetres becomes 1.77 metres).

Measure your height (in metres, to the second decimal place — for example, 177 centimetres becomes 1.77 metres). Plug your statistics into this formula: weight / (height x height).

Plug your statistics into this formula: weight / (height x height). For example, a 72 kilogram man with a height of 177 centimetres would do the following: 72 / (1.77 x 1.77) = 22.98 BMI.

For example, a 72 kilogram man with a height of 177 centimetres would do the following: 72 / (1.77 x 1.77) = 22.98 BMI. Or, you could just use a calculator.

But Mariell Jessup, the chief science and medical officer at the American Heart Association, said while Mr Trump was overweight, his blood pressure was normal.

About 40 per cent of Americans are obese, and that raises their risk for heart disease, diabetes, stroke and some forms of cancer.

"He has a 17 per cent chance of developing cardiovascular disease in the next 10 years," she said, mostly because of his age and slightly elevated bad cholesterol.

What's his cholesterol?

Mr Trump's cholesterol reading has improved since last year.

At his physical in January 2018, his total cholesterol was 223, which is higher than recommended.

That was despite taking a low dose of the statin drug Crestor to help lower so-called "bad" cholesterol and fats.

His doctor had said he would increase that dose in an effort to get Mr Trump's bad cholesterol reading of 143 down below 120.

Now the President's total cholesterol is down to 196, yet his LDL or "bad" cholesterol is 122, which is slightly elevated.

Dr Conley will now likely aim for an LDL below 100, according to Robert Eckel, a former American Heart Association president and cardiologist at the University of Colorado.

"Losing some weight would help modify some of the risk factors for heart disease," he said.

"A 20 to 25-pound (nine to 11-kilogram) weight loss would be what I'd recommend if he were my patient. And that's not a quick fix."

Is Donald Trump getting enough exercise?

US President Donald Trump (centre) with golfing greats Jack Nicklaus (left) and Tiger Woods (right). ( Twitter: Donald Trump )

Mr Trump doesn't drink alcohol or smoke, but he's not a big fan of the gym either.

His primary form of exercise is golf, and he says he gets plenty of walking in around the White House complex.

In case you missed it, Mr Trump recently installed a $US50,000 golf simulator in the White House that allows him to play rounds of golf at international courses without having to leave the office.

And his diet?

Mr Trump's love of fast food remains.

Last month he invited the college football champions, Clemson Tigers, to the White House during the partial government shutdown.

With the White House kitchen too understaffed to cater a meal, Mr Trump ordered burgers, french fries and pizza.

Sorry, this video has expired We have 'many, many french fries'

Dr Conley said routine lab tests were performed on Mr Trump, and his liver, kidney and thyroid functions are all normal, as are his electrolytes and blood counts.

An electrocardiogram, a test that measures electrical activity generated by the heart as it beats, remained unchanged from last year.

ABC/wires