And the notion that Trump is in "excellent health" doesn't jive with the stats.
The one issue that the 6-foot-3 president need to work on was his weight which, at 239 pounds, was three pounds heavier than he was in September 2016.
A weekly recap of the top political stories from The Globe, sent right to your email.
"The president does take some Ambien (a sleeping pill) on occasion" when he travels overseas, Jackson said, adding: "Like we all do".
The doctor rhapsodised about Trump's vision, his stamina ("more energy than just about anybody") and above all his mental acuity, which, Jackson made sure to note, he examined only "because the president asked me to".
"Can you explain to me how a guy who eats McDonald's and fried chicken and all the Diet Cokes and who never exercises is in as good of shape as you say he's in?"
The doctor adds that Trump would benefit "from a diet that is lower in fat and carbohydrates, and from a routine exercise regimen".
Trump said in the Reuters interview that he already gets exercise.
"We want something that's low impact - we don't want to give him joint issues", he said.
Navy doctor Ronny Jackson, who administered Trump's first presidential physical last week, said Trump received a ideal score on a test created to detect early signs of memory loss and other mild cognitive impairment.
The screening was carried out using a test called the Montreal Cognitive Assessment, on which Trump scored 30/30, Jackson said. He passed a battery of heart exams including a stress test that Jackson said showed an above-average exercise capacity for a man of his age, despite some calcium buildup in his arteries.
"I think a reasonable goal over the next year or so would be to lose 10 to 15 pounds", Jackson said.
He probably only sleeps four or five hours a night. "What can I tell you?"
'I was there for a very long time, ' he said.
USA political blogger John Aravosis said: "Increasing feeling like Trump's doctor lied, about a lot". "Some people just have great genes".
Jackson said Trump's heart health was "the one thing that stood out" for being resoundingly healthy, but several indicators suggest that's not entirely true. That means he's gained three pounds over the previous year, according to his last official records.
"He has a lot of energy, a lot of energy and a lot of stamina", Jackson said.
Trump's BMI chart compared to other U.S. presidents.