The actress, best known for her role as Sonia in BBC soap EastEnders, was photographed looking slim as she walked the red carpet at the The TRIC Awards, which celebrate the achievements of those who work in television and radio.
Wearing a loose fitting mustard dress and a Sixties-inspired beehive hairdo, Natalie looked confident and poised as she posed for cameras, happily smiling for the assembled crowds.
Her svelte shape is particularly remarkable as she gave birth to second child, a daughter named Joanie, less than a year ago, back in August 2016.
She announced Joanie's arrival on her Twitter account, telling fans that she, partner Marc Humphreys, and elder daughter Eliza, from her previous relationship with Adam Cotrell, were 'so in love!' with their new family member.
The mum of two, pictured above in 2009, has fluctuated from a size 16 to a size 6 in the past, and has always been candid about her battles with her body.
In 2013, she told The Mirror that her lowest weight, around the time she launched her first fitness DVD in 2007, was not sustainable.
'People were saying how amazing I looked, but I was miserable,' she admitted. 'I was eating next to nothing and exercising all the time. No one loses that much weight that quickly if they don't. It's completely unrealistic.'
'I really was obsessed. I would spend hours thinking about what I could eat the rest of the day. My world revolved around calories. I would have no breakfast, a bowl of soup for lunch, then a tiny salad. And that was it.'
Natalie later launched a second workout DVD, The Perfect 10, in 2014, but said that this time she felt that her regime was balanced and achievable.
'I'm a mum now and realise the importance of changing my lifestyle to be fit and healthy; this DVD is about that lifestyle change and doing a workout regime that is achievable and delivers results I can sustain,' she said to Female First at the time.
'I think we should all feel comfortable in our skin and as long as we know in our hearts that we're not over eating or under eating and that you're eating well and you're exercising, that's the way you should be, that's the shape you're meant to be, so you should be it.'