Sunrise weather presenter Sam Mac reveals real reason behind body transformation

The beloved weather presenter has shared why he secretly underwent a gruelling program for Men’s Health magazine.

Weather presenter Sam Mac has revealed the real reason behind his recent body transformation.

The Sunrise star unveiled his buff new look in Men’s Health magazine last month after undergoing a gruelling eight-week program with celebrity trainer Jono Castano.

In a new Instagram post this week, Mac, 42, explained he secretly embarked on a health and fitness journey because he wanted to get out of the daily routine after welcoming his first child in September with girlfriend, Rebecca James – a baby girl named Margot.

“The first few months of becoming a Dad is a bit of a blur. Of course, it’s magical, but you’re also in survival mode. Health and fitness take a back seat. I wanted to get out of the rut,” he wrote on Instagram, alongside a before-and-after photo of himself.

Sam Mac reveals reason for body transformation. Picture: Sam Mac/Instagram

“I wanted to show people (particularly new dads) getting yourself physically and mentally fitter which is a huge win for you, your partner and your little one.”

The TV personality admitted that the process wasn’t easy and was “bloody hard work”, but he wanted to inspire those looking to overhaul their bodies as well.

“I’m fully aware everyone’s situation and goals are different and not everyone has access to the trainers and experts I did. But I’m hoping I can borrow (*steal) some of the knowledge & pointers I picked up along the way & pass it on to you,” he said as he promoted an Instagram Q&A, which he held with fans last night.

In that live session, Mac was asked if he still worked out as strenuously as he did prior to his magazine shoot, to which he replied: “The short answer is no. I don’t think it’s realistic for me, certainly not sustainable and probably not even healthy. I was consumed by it, it was an obsession.”

Sam Mac and Rebecca James welcomed their first child together on September 12. Picture: Sam Mac/Instagram

Sunrise Weatherman Sam Mac in Men's Health Magazine. Picture: Jason Lee

“But, the principles, the learnings are still the same and they’re still relevant... I would say that I’m now operating at about 75 per cent of what I was throughout the challenge, and that’s manageable,” he added, saying his new regimen includes 10,000 steps per day and training three to four times per week.

During the eight-week challenge, he aimed for 20,000 steps a day and underwent regular circuit training that lasted for 75 minutes.

“I feel like there’s been a marked improvement in my physique, particularly in the last three to four weeks,” he said in the Men’s Health issue

“I was getting leaner in the face, shirts weren’t fitting, I was looking baggy in pants, which was great because that was confirmation for me that the hard work was getting somewhere.”