Olivia Frazer MAFS Weight Loss Journey: How She Dropped 50kg and Found Confidence
If you tuned into Married at First Sight Australia in 2022, you probably remember Olivia Frazer. The bride who sparked plenty of drama also opened up about something deeply personal—her lifelong battle with weight and the dramatic transformation that changed everything. Fans couldn’t stop searching for “Olivia MAFS weight loss” after she shared her story on air and in interviews.
Olivia’s journey isn’t just another reality TV glow-up. It’s raw, honest, and full of the highs and lows that come with real change. From tipping the scales at 95kg as a teenager to navigating complications after surgery and rebuilding her relationship with her body, she’s become a relatable voice for anyone who’s ever struggled with self-image. Let’s break it all down—exactly what happened, how she did it, and where she is now.
Who Is Olivia Frazer from MAFS?
Olivia Frazer, now sometimes known as Olivia Rutherford, appeared on Season 9 of Married at First Sight Australia. The school administrator (and later teacher) from New South Wales quickly became one of the most talked-about brides. While the show focused on her relationship with Jackson Lonie, Olivia used the platform to speak candidly about her past insecurities, including years of being bullied for her weight.
She wasn’t always in the spotlight for drama. Early in the season, she admitted to comparing herself to the other brides and feeling like “the biggest in the room.” That vulnerability struck a chord—and sparked massive interest in her weight loss story.
Olivia’s Early Struggles with Weight
Olivia has been open about her challenges starting young. She described herself as a “chubbier girl” who had been dieting since age 13. Everything intensified at 18 when she broke her leg. Unable to exercise, the weight piled on quickly, and no matter what she tried, it wouldn’t budge. By her late teens, she was around 95kg and wearing a size 18.
The emotional toll was heavy. Low self-esteem affected her relationships, and she felt she accepted poor treatment because of how she saw herself. “I’ve always had to exercise and eat right to not be too overweight,” she later shared. The injury made that impossible, and the frustration built up.
By age 22, she knew she needed a bigger solution. Diets and willpower alone weren’t cutting it anymore.
The Decision: Gastric Sleeve Surgery at 22
In 2016, Olivia made the brave choice to undergo gastric sleeve surgery. This procedure removes a large portion of the stomach, reducing hunger and limiting how much you can eat. It’s not a quick fix—it requires serious commitment—but for Olivia, it was a turning point.
She lost an impressive 50kg in the first year. The results were life-changing at first. She felt more confident and happier than ever. But rapid weight loss brought unexpected challenges.
The Dramatic Transformation—and the Complications
Here’s where Olivia’s story gets real. Within about a year, she dropped from 95kg all the way down to 45kg. That’s when gallstones hit— a common side effect of very fast weight loss. The pain was intense, and she couldn’t eat properly. “All my bones were hanging out,” she recalled in one interview. It got so bad she looked dangerously thin.
Once she recovered from the gallstones, Olivia worked hard to reach a healthier weight. She stabilized around 70kg and a size 10-12. That became her “happy place,” but she was honest that body dysmorphia didn’t vanish overnight. Even after the physical change, she still sometimes felt like “that chubby little girl” on the inside.
During MAFS filming, life on set and the stress of the experiment pushed her weight up to around 80kg. She gained some of the weight she had worked so hard to lose. But once the cameras stopped rolling, Olivia took control again.
Post-MAFS: Another 13kg Down and a New Focus on Maintenance
In May 2022, just weeks after the show wrapped, Olivia shared an update on Instagram: she had dropped 13kg and was back down to 67kg. “I was about 80kg filming MAFS, now I’m back to 67 as of this morning,” she wrote.
She credits a simple, sustainable approach: regular exercise and eating “as healthy as possible” with the occasional cheat meal. No extreme restrictions—just balance. She’s spoken about how the surgery changed her eating habits forever (for example, she can’t drink and eat at the same time without feeling unwell), so she’s learned to listen to her body.
Olivia’s Current Routine: Pilates, Mindset, and Moving Forward
Fast-forward to today, and Olivia’s fitness journey has evolved beautifully. After struggling with mental health following MAFS, a friend dragged her to a reformer Pilates class in 2022. It became her lifeline. By 2024, she was hooked, training consistently and even getting certified as a mat, reformer, and pre- and postnatal Pilates teacher.
She now shares her love of Pilates on Instagram (@olivefrazer), encouraging followers to find movement they actually enjoy. It’s not about punishing her body anymore—it’s about feeling strong and capable. Olivia has also moved on in life: she’s engaged (or married, depending on the latest updates) and has shifted her career focus toward writing, counselling studies, and even launching a podcast.
Her weight has stayed stable in the healthy range, and she continues to prioritize mental and physical well-being over a number on the scale.
Key Lessons from Olivia’s Weight Loss Story
Olivia’s experience offers practical takeaways for anyone on a similar path:
- Surgery can be a tool, not a magic wand. It worked for her, but she emphasizes the lifelong changes and potential side effects.
- Body dysmorphia doesn’t disappear overnight. Even after losing 50kg, Olivia still works on seeing herself clearly.
- Consistency beats perfection. Regular Pilates and balanced eating keep her on track without extremes.
- Mental health matters as much as the physical. Therapy, supportive friends, and enjoyable movement made the biggest difference post-MAFS.
- Your “why” evolves. What started as wanting to feel confident in relationships became about feeling good in her own skin every day.
Conclusion: Olivia’s Journey Is Still Unfolding
Olivia Frazer’s MAFS weight loss story shows that transformation is rarely linear. From 95kg teenager to gastric sleeve success, through complications, TV spotlight, and back to balance—she’s proof that real change takes time, honesty, and self-compassion.
If you’re inspired by her journey, remember: it’s okay to seek help (medical or otherwise), it’s okay to have setbacks, and it’s always okay to prioritize how you feel over how you look. Olivia continues to share her story with authenticity, reminding fans that the “after” photo is just one chapter.
Whether you’re curious about gastric sleeve results, dealing with body image struggles, or simply love a good reality TV glow-up, Olivia’s path is one worth following. Here’s to health that lasts—and confidence that comes from within.
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Frequently Asked Questions (FAQs)
1. How much weight did Olivia Frazer lose on MAFS? Olivia lost around 50kg overall after gastric sleeve surgery at age 22 (from 95kg to as low as 45kg initially, then stabilizing at ~70kg). Post-show she dropped another 13kg to 67kg.
2. What surgery did Olivia from MAFS have? She underwent gastric sleeve surgery in 2016. It significantly reduced her stomach size and helped her lose a substantial amount of weight.
3. Did Olivia Frazer have any complications from weight loss? Yes—she developed painful gallstones due to rapid weight loss, which caused her to drop to an unhealthy 45kg at one point.
4. How does Olivia maintain her weight now? Through regular Pilates (she’s now a certified instructor), a balanced diet with occasional treats, and listening to her body’s limits after surgery.
5. Does Olivia still struggle with body image? Absolutely. She has openly discussed body dysmorphia and says she’ll always “struggle” with how she sees herself, even at a healthy weight.
6. What is Olivia Frazer doing now in 2026? She’s focused on Pilates teaching, completing her studies (shifted toward counselling/writing), living in the UK with her partner, and sharing fitness and mental health content on social media.
7. Is Olivia Frazer’s weight loss sustainable? From what she’s shared, yes—by combining the effects of surgery with enjoyable exercise and realistic eating habits rather than strict dieting.
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