Functional & Holistic Health Coaching
Make sense of your health.
Find what's holding you back — and take the next intelligent step. When symptoms are complex and the standard answers haven't been enough, you need more than another generic protocol. Together, we look at your health story as a whole and connect the parts that matter.
For people navigating chronic fatigue, brain fog, MCAS, histamine intolerance, unexplained symptoms, weight-loss resistance and hormonal health issues.
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You're not starting from zero
Your health doesn't fit in one box
Maybe you've already changed your diet. Taken supplements. Improved your sleep. Seen doctors, therapists or practitioners. Some of it helped, a little. Not enough. You still sense that a piece is missing.
Complex, persistent symptoms are rarely explained by one single cause. More often, several things are interacting — nervous-system regulation, inflammation, hormones, gut function, nutrient status, environmental exposure, sleep and stress — layered on top of each other over time.
My work isn't to chase every possible cause. It's to help you see how your pieces connect, and decide what's actually worth paying attention to first.
How I see the body
Your symptoms are information
Not a personal failing. One practitioner looks at your gut. Another looks at your thyroid. Someone else focuses on stress or trauma. Each may be seeing something real — but if no one looks at how the pieces relate to each other, the pattern gets missed.
I take a whole-picture approach: your history, biology, environment, nervous system and lifestyle, read together instead of in isolation. Not because every problem has one hidden root cause — but because understanding the full pattern makes the next step far clearer.
"And you don't have to be fully fixed before that work is worth starting."
A healing partnership
Three words. Three stages.
Not a fixed protocol handed down on day one — a cycle of listening, testing and adjusting, together.
Understand the whole story
It starts with listening, not a checklist — your history, your timeline, what you've already tried.
- An in-depth intake and full symptom history
- We connect the patterns into a clear working hypothesis
Choose the first step
A simple, prioritised starting plan — not an overwhelming list of everything at once.
- Built around your life, not the other way around
- No filler — nothing you can't actually sustain
Learn from the response
Weekly check-ins track what's changing, then we refine — sequencing further only when it matters.
- Structured, written check-ins on a fixed rhythm
- Steady, visible progress — not a crash program
When someone else is better placed to help with part of your case, I'll say so directly and help you find the right person. Your progress matters more than keeping everything inside one practice.
Where I focus
Areas I frequently work with
MCAS & Histamine Intolerance
Exploring the immune, digestive, hormonal and nervous-system factors that can keep your system on high alert.
Brain Fog & Chronic Fatigue
Looking at sleep, nutrient status, hormones, inflammation, mitochondria and nervous-system regulation together.
Weight-Loss Resistance
Looking beyond calories alone — at thyroid function, hormones, insulin sensitivity, inflammation and stress physiology.
Hormone Optimisation
Building the foundations of hormonal health through sleep, nutrition, training and appropriate medical guidance.
Peptides & Advanced Health Tools
Understanding the mechanisms, realistic applications, limitations and risks, within the context of your overall health.
Nervous System & Whole-Person Healing
Supporting regulation and resilience, so your body has the safety it needs to actually change.
These are areas of focus, not guarantees. What's relevant to you depends on your individual history.
Work with me
Two ways to work together
One is a full investigation into your health story. The other is a focused, single-topic conversation. Neither replaces medical care.
Main offer
Whole-Picture Health Coaching
€700 one trajectory, incl. mapping session
A Health Mapping Session followed by 12 weeks of personalised guidance — for people with persistent or complex health problems who want more than another generic protocol.
- 50-minute Health Mapping Session (intake)
- Optional recommendations for blood work & lab testing, arranged through your own doctor or an independent lab
- Your personalised protocol — supplements, peptides and lifestyle changes — within 2–3 working days of intake
- Review of any existing labs or test results for context
- 30-minute call to walk through your protocol and answer questions
- 12 weeks of structured check-ins by text or email
- A weekly health tracker for you to fill in
- Weekly adjustments to your protocol based on how you're responding
- 30-minute closing call at the end of the 12 weeks — recap and next steps if needed
- If you haven't yet reached your goal after 12 weeks, continued support is available at a discounted rate
- And if I'm not the right fit for part of your case, I have a network of trusted practitioners I can point you toward
Price includes VAT where applicable. A limited number of clients are taken on at a time.
Apply for CoachingFocused session
Peptide Education Call
€50 one-time, 50 minutes
For people who already have a specific goal or peptide-related question and want clear, practical education — no full coaching trajectory required.
- How specific peptides work and whether they realistically fit your goal
- Comparing different options
- Realistic benefits, limitations and risks
- General guidance on typical dosing ranges and timing used in practice
- Storage and administration best practices
- Bonus: a 15-minute instruction video on reconstituting, injecting and storing peptides safely
Educational only — not a prescription, diagnosis or individualised medical protocol. If your situation is more complex, I'll say so and point you toward Whole-Picture Coaching instead.
Ask About a CallStructured plan
Weight-Loss Coaching Protocol
€80 one-time, 10-week structured plan
For people who want a real, structured approach to sustainable weight loss — not another generic, one-size-fits-all diet plan.
I lost 10kg in 10 weeks on this protocol. Clients of mine have lost anywhere between 5 to 10kg in 10 weeks. Results may vary.
- A few simple, easy-to-implement diet recommendations built around your goals
- A full review of the supplements you're currently taking, and what's actually worth adding or removing
- My video walkthrough, so you know exactly how to put the plan into practice
- A look at the bigger picture — training, sleep, thyroid and hormones — because weight loss rarely comes down to diet alone
- Highly personalised. No cheap and ineffective "one size fits all" approach
- We'll look at potential side effects and how to mitigate them — my clients have had very few side effects so far, and the protocol is well thought out
- WhatsApp access for the full 10 weeks for any related questions
- We'll keep track of your progress and make adjustments where helpful
Additional costs of the peptides, supplements and supplies will be around €110–140, depending on what extra supplements you may need.
Educational and coaching support — not a substitute for medical care.
Start the ProtocolOn a tight budget? No worries — just send me a message and I may be able to offer you reduced pricing.
About Sylven
I didn't study this because it interested me. I studied it to survive.
Ten years. Dozens of practitioners. Nearly every modality worth trying. Here's the real version of how I went from an unexplained collapse at eighteen to building the practice you're looking at right now.
Everything changed, and nobody could tell me why
I'd been energetic, social and doing well academically. Then, within what felt like months, that person was gone. Persistent fatigue. Brain fog thick enough to make simple conversations hard. Low-grade anxiety and depression that never fully lifted. Digestive symptoms that made eating feel unpredictable. I went from doctor to doctor. My bloodwork kept coming back normal. Eventually I was told it might simply be psychological.
I built my own path, because no one else was going to
I didn't accept "it's probably psychological" as an answer, so I started testing everything I could find — on myself, first. Functional and integrative medicine. Clinical nutrition. Biohacking. Hormone and thyroid optimisation. Chronic infection protocols. Mold and environmental-illness treatment. Nervous-system and trauma-informed work. Eventually peptides and other advanced tools most doctors had never even heard of. I worked with dozens of practitioners, sat through hundreds of hours of research and courses, and ran myself as my own longest-running case study — tracking what happened, adjusting, and starting again whenever something didn't hold up.
It was never one hidden diagnosis
The real insight wasn't a single missed test result. It was that several things had been overlapping the entire time: a concussion, Lyme disease, a chronic dental infection, environmental and mold exposure, immune dysregulation, hypothyroidism, low testosterone, and a nervous system stuck in a defensive, dysregulated state. No single practitioner had ever been positioned to see that whole picture at once — because almost no one is trained to look at all of it together. That gap became the whole basis of how I work now.
Getting well meant getting genuinely competent
Hope wasn't going to fix this — knowledge and structure were. I completed multiple courses and certifications in functional and holistic health, and studied deeply from some of the most respected names in biohacking, longevity and peptide science, including Dave Asprey, Ben Greenfield, Paul Chek, Gary Brecka, Tim Gray, Alex Kikel, Hunter Williams, Jay Whey, Joshua Macin and the Detox Dudes, among others. Because health is never only physiological, I also trained in psychology and nervous-system work — including Internal Family Systems (IFS) through the teaching of Richard Schwartz and Sarah Baldwin — to understand the emotional and nervous-system layer that gets missed almost everywhere else.
I'm not guessing on your behalf — I've walked it
The fatigue, the fog and the digestive chaos that defined my early twenties are no longer part of my daily life. I know what it feels like to be dismissed, to try things that don't work, and to eventually find what does — because I lived every step of it myself, for a decade. That's what I actually bring to this work: not a theory I read about once, but a path I walked and mapped in enough detail to help you find your own version of it considerably faster than I found mine.
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Client results
What working together can look like
"Due to my PCOS and endometriosis I experienced daily stomach aches and I was unable to get pregnant. The doctors couldn't help me in any way. Sylven used muscle testing to determine what supplements would be beneficial to me. After taking the supplements I immediately went from having 1 bowel movement a week to having 1 per day, and my daily stomach aches lifted — which was already amazing. Then, after 4 weeks on the supplements, I finally got pregnant, after 2.5+ years of trying without success. I'm 4 months into the pregnancy currently and so, so happy."
Kimberley
#1 Miss Universe Supermodel in The Netherlands 2026
Shared with permission. This describes one individual's personal experience — not a guarantee. Results vary, and supplement or protocol decisions should always be discussed with your own doctor, especially during or around pregnancy.
Get in touch
Let's see if this is a fit
Tell me a little about what's going on and what you're looking for. Every message lands with me — I reply personally, usually within two working days.
Please don't include detailed medical records, lab results or highly sensitive health information in this form. We'll cover that securely if we move forward together.
Prefer a quick message?
Interested in a free 15-minute intake call to see if we're a good fit? Just send me a quick WhatsApp or email. I'll send you the intake form to fill in and we'll plan a call shortly after.