One of the wealthiest people in the world, Mark Zuckerberg, has taken fitness seriously for the last few years. In fact, the Facebook CEO is also getting his family into fitness. On May 30, the 39-year-old uploaded two images on his Instagram. The first image was a mirror selfie of Zuckerberg wearing a 20 lbs weight vest. However, the second snap showed his two daughters doing pushups on the floor.

In his caption, Zuckerberg revealed that he had taken the photographs during his annual Murph challenge. The Murph Challenge is a specific workout circuit made famous by the late LT. Michael P. Murphy. Murphy laid down his life to save other Navy SEALs during an ambush in Afghanistan in 2005. However, still honor the valiant soldier by doing his favorite workout.

Mark Zuckerberg honored those who gave their lives to serve the nation

On Memorial Day, Mark Zuckerberg did the Murph Challenge to honor Lt. Murphy and martyr in the nation’s history. “I try to do the Murph challenge with the girls every Memorial Day as a tradition to honor those who defended us,” wrote Mark. He then described Lt. Murphy’s favorite and now famous workout.

“Running a mile… doing 100 pull-ups, 200 push-ups, 300 squats, and then running another mile — all while wearing a 20lb weighted pack,” explained the billionaire. Zuckerberg also timed the workout, and it was impressive. The 39-year-old revealed he finished the Murph Challenge in 39:58 min. His daughters also joined him in doing the quarter-murph in just 15 mins. His Instagram followers couldn’t help but comment.

Fans praised the billionaire CEO’s fitness level

The Facebook founder’s Instagram followers commented on the jiu-jitsu practitioner’s post. “Not bad for an almost 40-year-old,” commented one user. “Beastmode, that’s impressive,” wrote a second fan. “Bada** mark! Under 40,” wrote another fitness enthusiast. However, not everyone seemed equally impressed with the 39-year-old’s Memorial Day tribute. Some thought the father of two wasn’t being honest about his time.

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“That time is such a cap lmao. 20lbs weighted pull ups? Not with that physique,” one individual wrote. “Cap on the 100 pull-ups with 20lbs weight,” said another doubter. However, most people didn’t think Zucker had facked his time. One user even asked when Zuckerberg when he plans to enroll his daughters to learn Brazilian jiu-jitsu. “BEAST!!! and so awesome to see your daughters at it too! When are they starting jiu-jitsu?” the fan asked Zuckerberg, who recently won a BJJ tournament.

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What did you make of the post? Did Facebook CEO impress you with his fitness? Or are you among the doubters? Write your thoughts in the comments.