It was the reality TV show that saw overweight Australians from all walks of life shed a staggering number of kilos.
But after filming wrapped, the contestants were on their own – but not all of them flourished when the cameras stopped rolling.
From those who managed to maintain their fit physiques to those who fell back into bad habits and others who never left the public eye, Daily Mail Australia reflects on some of the series’ most memorable participants.
Daniel Jofre and The Jofre Family – 2015
So who was the biggest winner? Daily Mail Australia looks back at the most memorable Biggest Loser contestants – and how some turned weight loss into financial gain
A then 24-year-old labourer, Daniel entered The Biggest Loser competition tipping the scales at 132 kilos and won the competition after shedding 51.6 kilos, bringing his weight down to just 80 kilos.
Daniel was the joint winner with his uncle Rob and brothers Pablo and Tony, who also went onto make show history with the biggest combined weight loss totalling 208 kilos.
Transformed: Daniel was the joint winner with his uncle Rob and brothers Pablo and Tony, who also went onto make show history with the biggest combined weight loss totalling 208 kilos
Family affair: The Jofres went on to run a highly successful personal training company Pictured: Tony Jofre
The family went on to run a highly successful personal training company.
The family promote their status as the biggest weight losers in the reality TV show’s history to run one-on-one personal training sessions and special fitness events.
Daniel has an active social media account where he provides regular updates of him working out and preparing healthy meals.
Alison Braun – 2008
Transformed! Mother-of-three Alison Braun won legions of fans when she managed to maintain her whopping 66 kilo weight loss after walking away from the show in 2008
Keeping it off: And the stunner has managed to maintain her 55 kilo figure almost a decade on
Mother of three Alison Braun won legions of fans when she managed to maintain her whopping 66 kilo weight loss after walking away from the show in 2008.
And the stunner has kept her 55-kilo figure almost a decade on, despite facing her fair share of hardship in the years after filming the show.
Alison’s husband tragically took his own life in 2009, and she was forced to have surgery to remove her toxic breast implants late last year.
Sam Rouen – 2008
Success story: Overweight student Sam Rouen went from 154 kilos to 93 kilos, winning the season after clocking up the year’s biggest weight loss
Looking hot! Since his time on the show Sam has become a firefighter and shown off his ripped physique in fundraising calendars
Perhaps the most popular winner in the show’s history, 19-year-old university student Sam Rouen certainly struck a chord with viewers.
The overweight teenager went from 154 kilos to 93 kilos, winning the season after clocking up the year’s biggest weight loss.
Since his time on the show Sam has become a firefighter and shown off his ripped physique in fundraising calendars.
He recently marked 10 years since his win by taking to Facebook to mark the occasion.
Fiona Falkiner – 2006
Look at her now! The current host of the weight loss series got her start on TV as a shy 23-year-old from Geelong, Victoria
Making a comeback: The stunning blonde returned to the series as its host in 2015 and is still in the public eye
The contestant-turned-host of the weight-loss series got her start on TV as a shy 23-year-old from Geelong, Victoria.
Fiona went onto to lose 30 kilos on the show, dropping down to just 71 kilos, and has since enjoyed a career as a successful plus-size model.
The stunning blonde returned to the show as its host in 2015 and recently debuted her new relationship with girlfriend Lara Creber.
Adro Sarnelli – 2006
Original: The first ever winner of The Biggest Loser Australia has enjoyed a successful career as a personal trainer, body builder and motivational speaker since his weight loss
Fitness is his business: The Newcastle man lost 51 kilos on the show, dropping from 136 to 85 kilos, and maintaining it after the series
The first-ever winner of The Biggest Loser Australia has enjoyed a successful career as a personal trainer, body builder and motivational speaker since his weight loss.
Newcastle resident Adro Sarnelli lost 51 kilos on the show, dropping from 136 to 85 kilos, and maintaining it after filming.
But earlier this year, the father-of-three was accused by his former girlfriend Carla Price of leaving her ‘damaged’ when their relationship ended.
Emma Duncan – 2011
Slimmed down: Emma Duncan won her series after she shed an impressive 62 kilos, getting down from 133.9 kilos to 72 kilos
Newcastle hairdresser Emma Duncan won her series after she shed an impressive 62 kilos, getting down from 133.9 kilos to 72 kilos.
However Emma struggled to maintain her weight after leaving the series, at one point getting back up to 108 kilos.
She told The Daily Telegraph in late 2015 that she had managed to finally get her weight stable at 85 kilos.
Struggled: Emma struggled to maintain her weight after leaving the series, at one point getting back up to 108 kilos. In 2015, she claimed her weight was at a stable 85 kilos
Andrew ‘Cosi’ Costello – 2008
What a difference: In 2008, Cosi shedded 42.6 kilos off his original 140.8kg weight
Outgoing reality TV contestant Andrew ‘Cosi’ Costello took part in the 2008 season and shedded 42.6 kilos off his original 140.8kg weight to end up at 98.2kg.
He has since taken aimed at the series, slamming their misleading editing.
‘Have you ever wondered how the contestants manage to lose a staggering 12 kilos in a single week? We don’t,’ he told News Corp in 2014.
‘In my series a weekly weigh-in was NEVER filmed after just one week of working out. In fact the longest gap from one weigh-in to the next was three and a half weeks. That’s 25 days between weigh-ins, not seven. That “week” I lost more than nine kilos.’
Now a father and working for a travel show, Cosi also admitted that although he lost 50 kilos on the show, he has since piled 25 kilos back on, while ’75 percent’ of contestants from his season are back to their starting weight.
Bold claims! Cosi has since slammed the show for being ‘misleading’ and said ’75 percent’ of contestants from his season are back to their starting weight while he put 25 kilos back on