Jelly Roll has dropped from 540lb to 357lb and showed off his impressive results during a trip to Australia.

The 40-year-old country singer, whose real name is Jason Bradley DeFord, looked like a different person as he was spotted in Sydney, Australia, on Tuesday, wearing baggy sweatpants and a comfy top.

Jelly Roll’s transformation is all thanks to his 200lb weight loss – and he’s even admitted he might soon need to have his skin cut following his weight loss journey.

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As Jelly Roll continues to lose weight, bariatric surgeon Hector Perez has said he will need to learn “a whole new skillset” to maintain his progress.

“Losing over 180 lbs in two years is nothing short of a full-time job,” Hector remarked. “It means thousands of micro-decisions, with every meal, every workout, and every skipped craving stacked day after day.”

The expert continued, “From my experience as a bariatric surgeon, that kind of progress requires complete lifestyle reprogramming.

“Every pound he lost was bought with thousands of tiny choices he didn’t get to skip. Jelly Roll’s public journey shows a steady grind: training for races, cleaning up nutrition, and building routines that replaced old coping mechanisms.”

In order to maintain the weight loss, Hector suggested the singer needs to learn a new way of thinking including “consistent tracking, structured eating, resistance training, and emotional accountability.”

He continued, “He’ll need ongoing medical follow-up for labs and nutrient levels, especially after such a major transformation. The key now is stability.”

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While Jelly Roll has achieved something impressive with his weight loss, Hector said there will be some potential obstacles going forward.

The expert suggested Jelly Roll could experience “biological pushback.” He explained, “After large losses the body lowers resting metabolic rate and increases hunger hormones, so you feel hungrier and burn fewer calories at rest. That’s why many people who lose big amounts plateau or regain if they don’t intentionally adjust nutrition and resistance training.”

Hector also suggested “lifestyle and identity friction” could be big issues.

“Social cues, touring schedules, restaurant-heavy work, and the emotional role that food played previously can all reassert themselves,” he shared.

Hector added, “Public life adds pressure: compliments can be reinforcing, travel can derail routines, and success can breed complacency. The first year of maintenance is the riskiest.”

Finally, the expert said there can be physical consequences of such a rapid drop weight.

“He may face loose skin, changes in joint mechanics, or disproportionate improvements in mobility that uncover old injuries,” he suggested. “Sleep, mood, or micronutrient gaps can also show up if he’s not being monitored. If body-contouring surgery is considered later, that’s another medical and recovery challenge.”

Hector concluded, “He’ll definitely need purpose-based goals to keep the weight off, like race times or fitness milestones, and beyond motivation, he’ll need built-in accountability.”

Hector Perez, MD, is a board-certified bariatric surgeon at Renew Bariatrics and an advisor at Bariatric Reports.