Meet Lacey Blackman, a former corporate worker turned personal trainer who inspires more than 50,000 Instagram followers.
While at the age of 29, she's now an experienced body builder, a strong routine wasn't always the path Lacey expected for herself.
The PT has admitted that when she was desk-bound she found herself gaining excessive weight due to a poor nutritional and inactive lifestyle.
"I wasn't doing any exercise, I was eating poorly and I was drinking way too much," she told The Daily Mail.
"We'd go out a lot of weekends and I would be out until the early hours and we would get McDonald's on the way home. I also did a stint at Hamilton Island and would often knock off work and have some drinks afterwards.
"I put on 10 kilograms within a year and it wasn't a great feeling to be so young and noticing my clothes getting snug and have my zipper burst every time I sat down."
Nowadays, Lacey tells the news site she eats 2000 calories per day and undertakes a few sessions of high-intensity cardio along with strength training six days a week.
As a result of overcoming her weight demons, the Queensland-based trainer has vowed to help others with their fitness journey.
Here are a few of her clients' impressive transformations below.