AMERICANS have been left wondering why Health and Human Services Secretary Robert F. Kennedy Jr. hits the gym in jeans.

The question came from Fox News’ Jesse Watters during an interview Tuesday, who said it was “the question that everybody is wondering about.”

71-year-old Kennedy, known for his denim workout attire, explained the reasoning behind his unusual choice.

“Well, I just started doing that a long time ago because I would go hiking in the morning and then I’d go straight to the gym, and I found it was convenient, and now I’m used to it, so I just do it,” he said.

Watters appeared satisfied, responding, “There were a lot of theories, but that makes perfect sense.”

The unusual workout gear drew attention during Kennedy’s fitness challenge with Fox News personality-turned-Defence Secretary Pete Hegseth.

Participants were tasked with completing 50 pull-ups and 100 push-ups in under five minutes.

While Hegseth and other challengers wore standard shorts, Kennedy stuck to his signature jeans.

The health secretary has been sporting denim at the gym for years.

In June 2023, while still running for president, Kennedy posted a clip of himself in jeans completing push-ups.

“Getting in shape for my debates with President Biden!” he wrote at the time.

He repeated the denim routine in December 2024 ahead of his confirmation hearings for the HHS secretary role.

In that clip, Kennedy said he was “practicing moves for my confirmation hearing” while wearing jeans and no shirt.

Despite concerns from cousin Caroline Kennedy that he was unfit, he was narrowly confirmed by the Senate on February 13.

The viral gym moment comes amid a controversial start for Kennedy in office.

His early months have drawn criticism for COVID-19 vaccine restrictions and comments about autism.

Hegseth, the former Fox host, has also faced scrutiny for his appointment, including past sexual assault allegations and actions against transgender service members.

Kennedy encouraged Transportation Secretary Sean Duffy to take on the challenge next.

Hegseth called out other officials, including Chair of the Joint Chiefs Dan Caine and former colleague Will Cain.

“We hope Americans will take this challenge and you’ll pass it along so that we’re ready to be fit the way we need to be healthy and to have a healthy fighting force,” Hegseth said.

The push-up and pull-up challenge is part of Kennedy’s “Make America Healthy Again” campaign, echoing President Donald Trump’s MAGA slogan.

The initiative focuses on public health issues, including reducing artificial additives in foods and reassessing vaccination policies for children.

Comedian John Oliver recently highlighted the campaign on HBO’s Last Week Tonight, noting the movement’s appeal among parents seeking healthier diets.

Experts say American children are 15-20% more likely to have chronic health conditions in 2023 than in 2011.

However, many argue that Kennedy’s solutions range from superficial to potentially dangerous, The Independent reported.

Under his leadership, HHS has started defunding mRNA vaccine research, which one expert called “the most dangerous public health decision I have ever seen made by a government body.”

Kennedy’s jeans may have seemed odd, but he insists it’s just a convenient habit, and now Americans finally know why.