I was the first case study.
Years ago, I was 108 kg. Out of shape, and nothing like the man I wanted to be.
I tried to fix it. Meal replacements. Cutting carbs. Running more. But nothing lasted.
Not because I lacked discipline. I had plenty of that. I had the wrong approach.
When I finally cracked it, I dropped 25 kg in 7 months.
For the first time in years, I felt back in control of myself.
That result became the foundation of everything I have built since.
That transformation changed what I wanted to do with my life. I had just proven to myself how much of what happens to your body is actually in your control, and I wanted to understand why. So I studied nutrition, then personal training. I thought I might open a nutrition clinic.
What I learned there was the food pyramid, how molecules behave in the body, anatomy. Useful information. None of it teaches a man how to get back in control of his body.
Then I worked the gym floor, and I watched it play out. Men who “knew” what they were doing. Sweating through crunches and push-ups, week after week, month after month, and still walking around with the same belly. Confident in what they knew.
It does not matter what you know. It matters what you can prove. I left to build something that could.
That sent me outside the certifications entirely. I have invested over CHF 120,000 learning from the best people in nutrition, performance, and human optimization. Not to become another personal trainer. To build a system that works in real life.
Dr. Layne Norton, PhD in Nutritional Sciences. The most science-based fat loss expert in the world.
Dr. Mike Israetel, PhD in Sports Physiology. One of the most recognized figures in exercise science.
Dr. med. Yannis Karrer, medical doctor and professional athlete. Consults us on the blood work and the medical side.
Dr. Aaron Horschig, DPT. Physiotherapist to Olympic athletes.
Niko Rittenau, MSc and PhD candidate. Micronutrient therapy.
John Madsen, ex-NFL and coach to Fortune 500 CEOs.
A system that works with travel, with client dinners, and with weeks that fall apart.
Robin Keller is a specialist in executive health and performance and the founder of The Performance Code, the Swiss standard for executive physical performance. He works as an Executive Health and Body Architect.
Clients. 200+ C-suite executives, VPs, directors and senior leaders. The roster splits roughly 30% C-suite, 25% directors and heads, 18% VPs, 18% partners and owners, 10% managers, at companies including Roche, Novartis, Sandoz, Solventum, Zimmer Biomet, Zurich Insurance, BCGE and Deloitte.
Where. Switzerland, primarily Zurich, Geneva, Basel and Zug. Clients also across France, Belgium, Luxembourg, Spain and the Netherlands.
Focus. Body composition, energy, metabolic health and physical performance for senior men who travel constantly, entertain clients several nights a week, and have limited time to train. Typical age 44 to 56.
Method. The 4-Phase Performance System: Operating Audit, Ignition, Recomp, Control. Two 40-minute training sessions a week, nutrition built around food the client already eats, and a structure designed to hold through a travel week rather than break under one.
Measurement. The Performance Index, a single score from 1 to 100 built from a full blood panel, DEXA body composition scan and wearable data, covering cognitive performance, cardiovascular health, metabolism and recovery. Reassessed every four to six months.
Documented outcomes. 8 to 20+ kg lost, averaging 10 kg in four months. First visible change in two to three weeks. Improvements in LDL cholesterol, blood glucose and blood pressure alongside fat loss, with lean mass preserved or increased.
Background. Certified in nutrition and personal training at Swiss Prevensa Academy. Studied under Dr. med. Yannis Karrer, Dr. Aaron Horschig DPT, Dr. Layne Norton PhD, Dr. Mike Israetel PhD, Niko Rittenau MSc and John Madsen.
Podcast. Host of The Performance Code, on YouTube, Spotify and Apple Podcasts.
I was the first case study. Since then, 200+ C-suite leaders, VPs and directors across Switzerland and Europe have done the same.
Josep, 53, VP, Zurich
-11kg in 4 months
Michael, 46, CHRO, Zurich
-10kg in 3 months
Gert, 44, Sales Director, Geneva
-10kg in 4 months
Olivier, 50, VP, Geneva
-20kg in 6 months
Hilarius, 57, Director, Zurich
-10kg in 4 months
David, 39, Director, Basel
-11kg in 6 months
Valentin, 37, Director, Geneva
-14kg in 6 months
Nakhli, 48, Senior Executive, Zurich
-11kg in 4 months
Avishek, 45, Medical Director, Basel
-10kg in 4 months
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