Rebecca Stobbart first started putting on weight when she was only 17 years old.
While working at her first office job, Stobbart sat all day long and grabbed whatever food was available. It didn't help that she had an addiction to full-sugar Coca-Cola. She would easily go through two liters of Coke per day.
"I spent so many years telling everyone that my weight did not bother me, but how untrue that was," she said.
As she got older, the mom attempted to lose weight by trying a variety of diets, but she couldn't keep the weight off. But then she saw her niece melt her extra pounds away after joining Slimming World, a weight loss group that promotes healthy meal plans and activity.
Stobbart decided to give the group a try, which led to her ditching her unhealthy behavior, including, of course, the Coca-Cola habit.
She's since lost ten dress sizes and 51 pounds.
"I just feel alive," Stobbart said.
And judging by her transformation photos she posted on her Facebook page, it's not hard to see why!
PLUS: See some more amazing weight loss transformations below.