What should we eat? Nutrition part 3

Once we understand why we eat and how much to eat, the next big question is: what should we eat? There’s no shortage of opinions on this. From low-carb to plant-based to intermittent fasting, the internet is full of advice—and most of it promises quick results. But at CrossFit Kreis 9, we approach nutrition through a different lens: what does your […]
How much should we eat? Nutrition part 2

After understanding why we eat, the next logical question is: how much should we eat? This is one of the most common questions we hear—and one of the most misunderstood. People often look for exact numbers, rigid rules, or quick fixes. But the truth is, how much you need to eat depends on multiple factors: your body, your […]
Why do we eat? Nutrition part 1

Why do we eat? It sounds like a simple question. But when we look closer, the answer is more layered than we might think. Eating is not just about satisfying hunger. It’s a biological necessity, a nutritional responsibility, and a deeply human experience. At CrossFit Kreis 9, we know that before talking about what or how much to eat, […]
Why we chose to be a coaching gym

Choosing to be a coaching gym wasn’t a branding decision—it was a commitment to deliver the highest value possible to our members in the time they have. Because in a world where everything from workout plans to meal suggestions can be done by AI, one thing hasn’t changed: no one gets fitter without putting in the work themselves. […]
Client Success Story: Alperen

From HIIT fatigue to long-term strength: How Alperen found progress through coaching, curiosity, and consistency “I’m a curious person by nature,” says Alperen Tügen, a 30-year-old doctoral researcher in Physics at ETH Zurich. “I experiment for a living — and I love experimenting in life, too.” That curiosity is exactly what led him to CrossFit […]
Are you skipping zone 2 training?

When we talk about fitness, flashy usually wins. Heavy barbells, intense metcons, maximal lifts, and advanced gymnastics often steal the spotlight. But behind every sustainably fit, healthy, and high-performing body lies a quiet, often ignored foundation: basic conditioning—also known as Zone 2 training. And if you’re skipping it, you’re missing a crucial piece of your long-term health […]
Why high-intensity training matters—and how CrossFit gets it right

If you’ve been exercising regularly but feel like you’re stuck in a plateau—or if you’re new to fitness and want the biggest return on your time—there’s one approach backed by both science and experience: high-intensity training. High-intensity training isn’t just another fitness trend. It’s a highly effective way to build strength, improve endurance, sharpen your brain, […]
Too much training vs. too much fitness: know the difference

Too much training is not the same as too much fitness. Let’s clear up a common misconception: You can’t be too fit. Fitness is your body’s capacity to handle physical, mental, and emotional challenges. It allows you to lift, move, play, recover, and thrive—at every age and stage of life. The fitter you are, the […]
5 functional strength training exercises everyone should be doing (but probably aren’t)

Functional strength training exercises go far beyond the barbell basics—they build the kind of real-world strength that helps you carry groceries, climb stairs, play with your kids, and stay injury-free. While squats, deadlifts, and presses will always have their place, these five underrated movements are the secret sauce to moving better, aging stronger, and living more […]
CrossFit for parents: When time and bandwidth are short, it delivers

Is CrossFit for parents?If you’re juggling kids, work, household logistics, and the never-ending to-do list, it’s a fair question. With so little time and mental space left for yourself, how could something as intense-sounding as CrossFit possibly fit? Surprisingly well. At CrossFit Kreis 9, we’ve built our approach around people just like you—parents who want […]