There has been a lot of talk lately concerning Hillary Clinton’s medical condition. After hearing her coughing fits, then seeing her buckle at the knees while getting into a van, speculation ran rampant. A diagnosis of pneumonia has mostly put to rest rumors concerning her party seeking an alternate to step in for her. But it was a concern for a while — and may still be for some.

In the meantime, Donald Trump, an unrepentant lover of fried chicken and taco bowls, had his physician deliver a clean bill of health. Some question the odd terminology used by his doctor — unequivocally stating that Trump will be the healthiest president ever elected is, at the least, peculiarly optimistic — and others, such as U.S. Senate minority leader Harry Reid, have mocked Trump’s health claims.

In response, Trump appeared on “The Dr. Oz Show” yesterday so he could assure the nation of his well-being and also of his ongoing ability to grab lots of free air time.

Now, I’m not suggesting that anyone be disqualified from the presidency because of medical reasons. Both Clinton and Trump are likely in good enough health to not collapse and die on us any day soon. However, if you’re truly worried about your next president’s well-being, I have a suggestion.

Libertarian presidential contender Gary Johnson is by far the fittest candidate in the race. He’s a runner — and a damn good one. He claims a personal best for a 10k of 33:49.

OK, anybody can claim a decent time. You want proof. How about something more impressive? He runs marathons. His best was a 2:48, run in Arizona when he was 29 (good enough, by the way, to have won three earlier editions of our own Boston Marathon.)

Maybe you want something more recent. He actually ran Boston a few years back — at age 49 — and finished in 3:11.

Maybe marathons aren’t good enough for you. Lots of otherwise unremarkable folks can run 26 miles these days. So, let’s talk triathlons. Johnson has competed in what is probably the most famous triathlon in the world — the Ironman of Hawaii — that would be a 2.4-mile swim, a 112-mile bike ride and then a marathon run of 26.2 miles, in that order and without a break. Johnson did it in 10:38.

I’ll lay odds Clinton and Trump couldn’t pull off that combination in less than a week even if they did it as a tag team.

Oh, I almost forgot. He’s also climbed the highest mountain on every continent, including Antarctica. And he finished Everest while suffering from blackened and frostbitten toes. That kind of puts finishing a campaign appearance while having pneumonia in some perspective.

(Not to gild the lily, but he may have accomplished some of these milestones while he was high, too. He’s pretty much a one-man counterpoint to anyone who thinks marijuana usage leads to laziness or a lack of focus, but that’s an argument for another day.)

Anyway, there you have it. If running for president actually involved running, Johnson would win handily. I’m not saying that’s the best qualification for being president, but you may have been concerned about the other two and I’m just trying to help.

Jim Sullivan is a freelance writer from Watertown and a longtime member of the Libertarian Party.