About Karl — Nutritionist, Coach & Chef Behind Flexible Health

A group of people taking a selfie outdoors on a scenic hilltop with a town, river, and rolling hills in the background. The group includes two adults and three children, all smiling.

Grab a coffee — this one's a long one. But if you've ever started a diet on a Monday and quit by the next, it's worth the read.

From my early teens to my early thirties, I was overweight. I still remember standing in front of the mirror at intermediate school, asking my mum why I looked like a spoon — rounded out at the middle, no matter what. As I got older, my body didn't change shape. It just got bigger.

I tried to lose weight three times through my twenties. Once I got below 100kg — 99.9kg — and I almost cried in the gym changing room where the scales were. Six months later I was right back where I'd started. I was working as a chef back then: awful hours, relentless stress, barely any sleep. And the cruel irony? I had all the cooking skills in the world and no idea how to use them to feed myself well.

There was always the same pattern. I'd sign up for a six-week challenge at my gym and with no plan and coach, change my entire life overnight. Train every day. Barely eat. By the final week I'd be counting down the days to the drive-through I'd "earned." A few months later I was back at my starting weight, ready to do it all again.

Sound familiar?

Out of the Frying Pan

I was 32 at the time and I finally cracked it — and ironically, it wasn't even about me. I was supporting my wife, and it was easier if we both did it together. The weight came off, I had energy I'd never known, and I joined a gym again. But this time was different: I'd already lost nearly 20kg, so I wasn't training to lose weight anymore. I was training because I enjoyed it, building muscle I never knew existed.

I threw myself into clinical research, dead set on never going back. I planned every session, tracked every meal — and somewhere in there, it stopped being healthy. I couldn't enjoy a social occasion. I was the guy who couldn't have a slice of cake, or who'd flinch at olive oil on a salad. I was training hard and feeling worse about how I looked than ever.

So I did something that, looking back, wasn't really the answer: I signed up for a bodybuilding competition. I told myself it was about being proud of the work I'd put in — eight more weeks of intense training and rigid dieting, then up on stage in front of my family to finally silence the voice in my head.

And that's when it hit me: I wasn't enjoying any of it. I'd done it again — chased another challenge with a finish line. And sure enough, once it was over, the weight crept back. Not enough to reach for the XXL clothes again, but enough to know my whole approach to health was still broken.

A smiling man sitting on a couch in a living room, holding a happy baby with a pacifier, near a bookshelf and curtains. In another part of the image, a young boy lifting weights and a muscular man working out in a gym.

What I Learned

So I did what any “Normal” person would do: I went all-in on something new. I started studying — this time channeling the obsession somewhere useful — around full-time work, a young family, and training squeezed into the gaps. (Turns out you can point that same intensity at understanding health instead of punishing yourself with it. Who knew.)

And the biggest thing I learned was this: the industry is built to set people up to fail, even when it doesn't mean to.

We hand people restrictions only the most obsessive can stick to. We tell them to do 100 burpees but never how to recover with food. We sell a six-week challenge right at the start of spring to cash in on the "summer body," then offer nothing once it ends and people hibernate through winter. And now, with AI, suddenly everyone's a coach, a nutritionist, a scientist.

Two chicken fajitas with red bell peppers, onions, and green herbs in flour tortillas, garnished with lemon slices and sliced avocado on a white oval plate.

So I Built Something Different

That's why I built Flexible Health — three pillars that reflect my own journey:

Flexible Kitchen (under construction) — a recipe collection leaning on my chef years to show you that nutritious food isn't hard, and doesn't cost an arm and a leg. You just need someone to show you how.

Flexible Nutrition — because if I tell you that you can't have a piece of cake or a couple of squares of chocolate at night, you'll only want it more. (Try not thinking about a purple elephant.)

Flexible Training — because you don't need 100 burpees to hit your goals. We train because our bodies need muscle to thrive. Without it, "having a fall" arrives a lot earlier in life than any of us would hope. Social media has sold us a perfect body and called it the standard — but this isn’t about how you look. It's about how you feel. (Although a bit of bicep is a nice bonus.)

Across this site you'll find my thinking and personality woven through everything — the recipes, the way I coach, and my journal, where I'll challenge you to approach your health differently than every other time you've tried. All of it grounded in solid research and hard-won personal experience.

If any of this sounds familiar — you're exactly who I built this for.

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Share your story with me, so I can help you re-write it