Megan half the woman she once was

If the urge to binge on sweet treats takes hold, she pulls out her secret weapon, ponders the image before her, then she's back on track.

"I carry the photo with me, so if I have a bad day, I look at it," Ms Lawton said on Tuesday.

With a lot of sweat and salads, she's reached her goal weight of 70 kilograms. She's almost half the size she was when she started working at House With No Steps five years ago.

MORE: Employees on track for better lifestyle

"I'm a very shy person so I didn't want anyone to know at first, I didn't want anyone to know if I failed - that's how I see myself, that I fail everything," Ms Lawton said.

But she is a glowing success story in an organisation committed to helping its staff and clients help themselves - by investing in their health.

A support worker in a group home, Ms Lawton said many of her colleagues and the people they support struggled with their weight and didn't know how to "get healthy".

"That's why I want other people to take advantage of the program here," she said referring to the healthy lifestyle plan.

"It's so good for people who can't find the way to do it themselves. It's good that the workplace provides so much support. It makes people a lot more aware.

"It helps people we support too, a lot do have weight issues as well," she said. "My advice would be 'don't be shy. I was like that and I've done it so you can too'."