NINE lives are five weeks into one of the biggest changes they will ever experience.
They have turned off a path of processed foods and bad choices, and on to one of exercise, clean eating, and ultimately, a better future.
With four trainers leading the four teams, the Waves Yamba's Biggest Loser challenge crew has already shed 97.7kg combined in just five weeks.
"They're all doing so well and training hard," trainer Hayley Biddle said.
Contestants get two personal training sessions a week, plus a weekly exercise plan and meal plans.
The nine contestants took on the fun run at the Yamba Triathlon yesterday, sponsored by the Elite Energy team, who saw the Biggest Loser as a great cause and jumped on board to help out.
Ms Biddle said she was oozing with pride when the contestants completed the fun run.
"It makes us so proud," she said.
"It's almost the pinnacle of what were trying to get out of them: new confidence, new fitness and courage. They're taking every step forward towards a new lifestyle and it has a massive impact on their confidence."
Contestants are weighed in every Monday morning and Ms Biddle said by the end of week 13, she hoped they would have lost a collective 300kg.