Married At First Sight star Ryan Donnelly is not one to hide his love of heading to the gym.

And the 36-year-old has stunned followers, showing off a remarkable physical transformation in a resurfaced photo.

Ryan’s passion for fitness and self improvement came to light during his time on the show, and the photo Ryan shared to Instagram back in 2021, proves it’s not just a passing fad.

The photo was a side-by-side image that showed Ryan as a 16-year-old, next to a more recent shot.

Teenager Ryan looked barely recognisable, sporting a shock of brown curly hair and a very different physique.

In the image, he donned a white tank top and a pair of long board shorts, but his trademark cheek grin was still clearly evident.

Married At First Sight star Ryan Donnelly is not one to hide his love of heading to the gym. Pictured

The juxtaposed image showed a gym-honed Ryan posing for a mirror selfie.

Appearing much more confident, Ryan was not afraid to show off his washboard abs and chiseled arms posing in a pair of boxer briefs.

‘The 16 year difference,’ Ryan captioned the surprising image.

‘That HAIR. From me in all my awkward teenage glory… the bad posture, long as hell board shorts, weird necklace faze [sic], clearly zero clue about training or confidence.’

‘To present day the leanest, meanest and most disciplined shape of my life thus far (And I ain’t even close to done).’

Continuing this post, Ryan admitted to struggling with self-esteem and identity in the past.

‘Each of our individual journeys are different – I struggled for a long time to recognise my identity, become self-aware and overcome damaged self esteem,’ he wrote. ‘And Instagram didn’t even f***ing EXIST yet!’

He rounded out his post with some inspirational words of wisdom.

The photo was a side-by-side image that showed Ryan as a 16-year-old, next to a more recent shot. Teenager Ryan looked barely recognisable, sporting a shock of brown curly hair and a very different physique

The post was met with a flurry of comments from followers, with many praising the future reality star for his commitment

‘I strongly believe in energy, in passion, if something resonates with you, seize it, learn from it and be resilient against superficial opinions,’ he added. ‘Time will reveal all.’

The post was met with a flurry of comments from followers, with many praising the future reality star for his commitment.

‘From surfer boy to big daddy,’ one offered.

‘That’s progress my bro good work,’ wrote another.

A third summed up the sentiment of many.

‘You’re an inspiration!!!’ they added.