Why Ambitious Professionals in Amsterdam Choose ONE for Sustainable Fitness

Your career is thriving — but your health feels left behind. At ONE Institute, we help busy professionals reclaim their energy, focus, and strength through an approach built for high-performance lives.

The Problem: Time, Stress, and Inconsistency

When success demands your energy, health often takes a back seat. You know you should work out, eat better, sleep more — but finding time and structure feels impossible.

That’s where ONE comes in. We specialize in helping time-poor, result-driven professionals in Amsterdam achieve real, lasting transformation — without wasting hours in the gym or relying on unsustainable routines.

The ONE Difference

Our approach bridges the gap between science and simplicity:

  • Only two sessions per week for maximum results.

  • Structured system, not guesswork — proven, measurable progress.

  • Holistic health coaching — mindset, nutrition, and recovery included.

  • Non-intimidating community — private studios designed for safety and belonging.

Clients describe ONE as “the first place where fitness finally makes sense — a non-intimidating space powered by community and genuine care.

The Mind Behind ONE — Glenn Melis

Founded by Glenn Melis, ONE was born from a simple insight: fitness should empower, not overwhelm.
Drawing from experience in Europe’s largest personal training companies and years of coaching professionals, Glenn built ONE to make personal training results accessible to more people — without compromising quality.

From Burnout to Breakthrough

Many clients come to ONE at a crossroads — physically drained, mentally cluttered, and seeking balance.
Through the ONE Method, they rediscover discipline, confidence, and purpose — not just a stronger body, but a more focused life.

As one member put it:

“ONE didn’t just change how I look. It changed how I show up — in meetings, in my marriage, in my mind.”

Ready to Take Back Control?

If you’re ready to stop starting over, it’s time to join a space where you’re guided, supported, and challenged — all at once.

We call it transformation that lasts forever.

👉 Schedule your free consultation today

FAQ:

Q1: Is ONE only for experienced people?

No. We tailor every plan to your current fitness level and personal goals.

Q2: What results can I expect?

Clients typically experience noticeable changes in strength, energy, and confidence within 8–10 weeks.

Q3: What’s the community like?

Supportive, friendly, and inspiring — our members share your drive for growth and balance.