Pamela Dolan, 31, joined the Slimming World group based at the town’s Royal British Legion premises last March, weighing 18 stone and 1.5lbs.
She has since reached her dream weight of just below 12 stone and been voted her group’s Woman Of the Year and Greatest Loser.
Despite a global pandemic, Pamela was determined to shed weight for her wedding last year.
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She said: “My mum posted a picture of me on my 30th birthday on Facebook and I couldn't believe how I looked.
“I knew I was big, but I didn't realise just how big I actually was. I didn't like what I saw so I knew I had to do something about it.”
After joining Slimming World, Pamela instantly fell in love with the plan and using low-calorie cooking sprays.
So much so, she continues to attend its weekly meetings via Zoom to monitor her weight.
She added: “I am a really fussy eater so I was worried I wouldn't like anything but the plan is amazing and I can eat just about everything I used to, just by changing the way I cook things.
“I've been trying things I would never had tried before and having things like bacon pasta, pork kebabs and my absolute favourite: burger, chips and beans.”
Pamela, who now attends a group at The Scott’s in Grangemouth, suffers from athsma and before losing weight really struggled to walk far without getting out of breath.
Now a keen walker who also runs, she added: “Slimming World has changed my life.
“I would recommend this plan to anyone who is struggling with their weight. The consultants are amazing and so helpful, I couldn't have done this without them.”
Congratulating the young mum, Slimming World consultant Jenni Lapsley said: “We are all so incredibly proud of Pamela.
“She is such an inspiration and it's just amazing to see someone become so happy and confident. Losing over 6 stone is such an achievement, but achieving this during such difficult times is truly amazing.
“Pamela is proof that if you really want to lose weight, you absolutely can.”