KB Fit for Life
Experience Meets Dedication
From Amsterdam to London to Cape Town, 20 years of real results with real people.
200+
20+
Years Experience
Clients Trained
6
Countries
15+
Longest Client
More than a trainer, a lifelong athlete.
My name is Kjell Buyst, yes, it's a tricky one to pronounce, but once you've trained with me, you won't forget it.
Born in the Netherlands, raised with Belgian roots, and given a Scandinavian name, I've always been a bit of a mix.
That same curiosity and drive has shaped everything I do.
My journey in martial arts started at age 7 with karate, which grew into kickboxing and eventually Muay Thai, competing and coaching along the way. Through combat sports I discovered what real fitness meant: strength, discipline, and mental resilience. That foundation led me naturally into personal training, which I've been doing professionally since 2002.
I've never stopped challenging myself. CrossFit competitions, powerlifting, strongman, each discipline added a new layer to my understanding of human performance. I don't just coach from a textbook. I've lived it.
"I came to Cape Town in 2009 to visit my brother, and never left."
The mountains, the ocean, the energy of this city, it matches how I like to live and train. What started as a visit became a career that took me around the world. My reputation grew beyond Cape Town, over the years I've worked with clients in New York, Los Angeles, Brazil and London, including several years as a dedicated trainer for a private family in the UK.
Today I work with clients across the Atlantic Seaboard and City Bowl, at the gym, at their home, or online. Over the years I've worked with models, actors, business owners, competitive athletes, pre and postnatal clients, and people who simply want to feel better in their own body.
Every person is different. Every program I write is built around you, your goals, your lifestyle, your starting point.
Built From Experience
Snapshots of strength, focus, and transformation.
