Once upon a time Shanna Fried weighed 296Ilbs and was so large that she was unable to run on a treadmill - or even cross her legs.
Fast-forward to 2014 and the once binge-eating fitness-phobic is now 120Ilbs lighter and working as a personal trainer and life coach in New York.
"I had so many feelings inside about myself, that hitting something was a release for me," she says. "In the first two weeks I lost at least 20Ilbs."
Now, she works out six days per week - boxing, kickboxing, spinning or crossfit - and has set up her own business as a personal trainer and life coach in New York City, New York.
Speaking about her weight loss on her website, she says: "As the weight began to drop off, I knew it was time for me to take a hard look at my lifestyle and eating habits. It wasn't easy and I definitely wanted to quit altogether many, many times. However, I didn't, and I began to see the results both physically and emotionally. For the first time in my entire life, I was passionate, dedicated, and motivated to keep on going."
Listen to Shanna's inspiring story in the Women's Health video above.