The Sarnia Journal has partnered with local photographer Art Connolly to feature his captivating “Humans of Sarnia” series as he delves into the lives and experiences of everyday people in Sarnia/Lambton.
The first thing you notice about Nikki Tremblay is her energy. It’s radiant, quick, and impossible to ignore — like a spark that never burns out. Her steps are brisk, her speech is fast, and her enthusiasm for conversation is infectious.
Born and raised in Sudbury, Nikki grew up surrounded by family, lakes, and the small-town sense of community that shaped her values. She met and married her husband Mitch, and together they raised two boys. Thirteen years ago, Mitch received a promotion with Esso, managing the company’s distribution terminal in Nanticoke. Three and a half years later, another opportunity brought the family to Sarnia, where Mitch now manages both the Sarnia and Nanticoke terminals.
For Nikki, every move meant new beginnings — and new chances to grow.
Before her family’s relocation, Nikki had gone to school to become a dental assistant, a career that suited her caring nature and attention to detail. But when her youngest son was born, she decided to stay home and open a home daycare, which she ran for ten years. “I loved being part of the kids’ growth and being able to help other families,” she says.
When she and her family arrived in Sarnia, Nikki was determined to make the city feel at home. One of her first stops was the YMCA, where she began her fitness journey. “I joined just to meet people and stay active,” she says, “but it ended up becoming a huge part of my life.”
She quickly fell in love with weightlifting, finding strength in both body and mind. That passion led her to start working at the YMCA in membership services. After the pandemic led to temporary layoffs, Nikki returned and accepted a promotion to Membership Supervisor. Her personal interest in fitness deepened — and to ensure she was training safely, she hired a personal trainer. That experience motivated her to become certified herself, and today she offers personal training part-time while also working full-time as a dental office administrator.
At first glance, Nikki exudes health, discipline, and strength — but her path to this point wasn’t easy. “I wasn’t always like this,” she admits. “I had weight loss surgery ten years ago — I just celebrated my ‘surgiversary.’ I used to weigh 256 pounds.”
Her decision to have bariatric surgery was rooted in health and self-awareness. “I was continuously in pain,” she says. “I wasn’t diabetic yet, and I didn’t have any major medical problems, but I could see where I was headed. Going up the stairs hurt. I knew if I kept going down that road, one day I’d be over 300 pounds. I’d tried every single fad diet — but they never worked because they’re not sustainable.”
Nikki explains that the bariatric process is far from a quick fix. “It’s an extensive journey,” she says. “You go through nutritional counseling, psychological evaluations, medical testing — and you must be completely committed. It changes your life.”
Even after surgery, the process doesn’t end. “You need continuous care — bloodwork, vitamin tracking, and regular follow-ups,” Nikki says. “I take about sixteen vitamins a day, and some of them can’t be taken together. You take your vitamins for life. You drink your water for life. I drink an astronomical amount of water every day,” she adds with a laugh.
Ten years later, Nikki has maintained her weight loss and gained strength through fitness — both physically and mentally. “It’s about health and longevity,” she says. “It’s not about the number on the scale anymore.”
In Ontario, bariatric surgery has some of the best long-term outcomes in the world, with patients maintaining significant weight loss and improved quality of life. But for Nikki, success is more than numbers. “It’s about feeling strong, confident, and capable,” she says. “It’s about creating the life you want.”
Her personal experience inspired her to give back. Nikki is a co-administrator of the Sarnia Bariatric Surgery Support Group on Facebook — a growing community with nearly 300 members. “There’s a lot of misunderstandings about weight loss surgery,” she explains. “People think it’s the easy way out, but it’s not. It’s about courage, commitment, and doing hard work every single day. I wanted to create a space where people could talk openly and feel supported.”
Her passion for helping others doesn’t stop there. Nikki is also a Big Sister through Big Brothers Big Sisters of Sarnia-Lambton — a role she takes great pride in. “Being a mom of two boys, I never had a daughter,” she says warmly. “And with not having family here, I thought — my kids are older; they don’t need me as much now. I could give my time to someone else.”
As fate would have it, Nikki was paired with a young girl who turned out to be a perfect match. “You couldn’t have made a better match than the two of us,” she says, smiling. “We’re the same person. Every single thing I said I wanted, she embodies. It’s been such an incredible experience watching her grow and knowing that I can be part of that.”
Between her full-time career, part-time training, volunteer work, and community involvement, Nikki somehow finds time to nurture all the things that matter most to her — her health, her family, and her desire to lift others up.
Her story is one of transformation and service — proof that change doesn’t happen overnight, but through persistence, discipline, and heart.
There’s a spark in Nikki’s eyes when she talks about her future — an unmistakable blend of pride and determination. “I just hope that through my story or my work, I can help inspire someone else to make a positive change — in whatever way they need.”
Nikki Tremblay is more than a source of endless energy — she’s a testament to what’s possible when strength meets compassion. Her journey reflects resilience, generosity, and the drive to lift others as she rises.
Sarnia is lucky to have her — a true firecracker whose light only seems to burn brighter with each passing year.
Humans of Sarnia founder Art Connolly is a man fuelled by curiosity and a passion for connecting with people in Sarnia. Inspired by the renowned “Humans of New York” series, with a camera in hand, he captures the very essence of the individuals he encounters, preserving their stories through his lens. Follow his series on Instagram and Facebook.
