N-health®
Natasja van Ooijen
SCIENCE
HEALTH
WELLNESS
Welcome to my page. The N in N-health stands for my name, Natasja, but also for Nature and Nurture. Essential for us as humans.
Health isn't a coincidence. It's the result of understanding biology, consciously choosing a lifestyle, and providing the body with the right conditions to recover and thrive. It also involves building awareness so the brain knows what needs to be done. In my practice, prevention is key: optimizing energy, cognitive acuity, hormonal balance, stress regulation, and metabolic flexibility before symptoms arise.
Science means that every intervention is rooted in current insights from clinical psychoneuroimmunology, epigenetics, and metabolic medicine. Health means looking at the whole: brain, immune system, hormones, mitochondria, gut microbiome, and environment as a single, integrated network. Wellness means vitality, clarity, resilience, and a body that not only functions but performs.
For those seeking more than just symptom management, I offer a comprehensive program that combines prevention, optimization, and recovery. Whether it's about longevity and performance, or specialized support for cancer, metabolic syndrome, Long COVID, or trauma-related dysregulation, the principle remains the same: strengthening the individual, regulating the system, and building sustainable health.
For those who consciously want to optimize their health, but also for those who have already traveled a long way with conventional and/or complementary care without finding a lasting answer, I offer a different approach. It's not focused on treating isolated symptoms, but on restoring underlying regulation. Where systems are out of balance, the key often lies.
Whether it concerns preventive vitality, or guidance for cancer, metabolic syndrome, Long COVID or trauma-related dysregulation: the core remains the same.
Empowering humanity. Regulating the system. Building sustainable health. Investing in your health is investing in freedom. In the energy to create, lead, and live at the highest level.
You are very welcome!
Why should you work with me on your health and not with someone else? Perhaps the most important answer is: feel what's right for you. Health is personal. So is trust. I work preventively, and of course, you are also welcome with existing complaints or illnesses. My focus isn't on suppressing symptoms, but on understanding and resolving the underlying cause. I see complaints as signals. Together, we'll explore their true origins. I work systems-oriented, using an evidence-based approach within functional medicine. This means we don't view the body in its individual parts, but as a single, interconnected whole in which everything is interconnected. My approach goes beyond orthomolecular therapy. In a comprehensive Deep Dive, I use film medicine and analysis of your current situation to map the common thread step by step, back to the root cause of the cause. From there, a personalized treatment plan is created that is fully tailored to you. No standard protocol, but customized. Consultations can take place both online (telemedicine) and in person (at my practice). Ultimately, health is all about energy. About how well your system is able to produce, utilize, and regulate energy. You are unique. Just as every person is unique. That's why I deliberately don't work with ready-made programs. You don't fit into a standard program, so a standard program won't suit you. I work with attention, passion, and commitment, and arrive at solutions that are completely tailored to your personal situation. Perhaps you've found my path for a reason. Feel free to take a look under the heading "Who am I" to read more about my background and vision. Consultations are part of a customized program that is adjusted along the way based on your progress. We work together towards your desired situation. You will not only be guided through the process, but you will also learn to understand what's happening in your body along the way. This knowledge is permanently valuable. I regularly combine consultations with additional support, such as hydrogen gas therapy (free of charge) and a metabolic test (free of charge), for added depth. My goal is to empower you to become self-reliant. With minimal consultations, but maximum clarity and insight. You'll understand why we do what we do. That's why, after each consultation, you'll receive a written summary via email, in the form of a consultation letter and an action plan. You'll learn how to optimize and maintain your health, and how to age with vitality and strength. Think of it as a learning experience in health, for yourself and for those around you. I hope the information on my website is clear to you. If you have any questions, you can always send me a WhatsApp message or email, or you can fill out the questionnaire on this site, which can be found at the bottom of each page. Are you curious about what your body needs to optimally utilize its self-healing capacity? Do you have questions? Don't know where to start? Let's explore that together. The most important thing is that you feel comfortable with me. That we work together towards your best self. Not just through nutrition and lifestyle, but on multiple levels simultaneously. We start with the basics. Not just treating the symptoms, but truly delving deeper. And the beauty is: from the very beginning, you'll build knowledge you can use for the rest of your life.
"The smallest change makes the biggest difference . "
Dr. L.Pruimboom
What is kPNI or Orthomolecular?
Ook wel nutritionele, functionele of integrale geneeskunde genoemd. Orthomoleculaire geneeskunde is een benadering die werkt met stoffen en interventies die het lichaam van nature herkent en gebruikt: voedingsstoffen, leefstijlinterventies en gerichte ondersteuning van biochemische processen. In plaats van het onderdrukken van symptomen, ligt de nadruk op het optimaliseren van fysiologische functies. Leefstijl vormt de basis. Voeding is daarbij een essentieel uitgangspunt, omdat voedingsstoffen op celniveau en moleculair niveau directe invloed hebben op enzymen, receptoren, mitochondriën (de energiecentrales van de cel), hormonen en immuunreacties. Wanneer er langdurig tekorten bestaan aan essentiële voedingsstoffen, kan gerichte suppletie tijdelijk nodig zijn om biochemische processen weer op gang te brengen. Orthomoleculaire geneeskunde beperkt zich echter niet tot voeding en supplementen. Advies over gedrag, beweging, slaap, stressregulatie en herstelmomenten maakt integraal deel uit van de begeleiding. Het doel is het creëren van optimale omstandigheden waarin het lichaam zijn zelfherstellend vermogen kan benutten. Binnen het huidige zorglandschap wordt orthomoleculaire geneeskunde vaak onder de complementaire geneeskunde geplaatst. In de praktijk kan zij in veel gevallen aanvullend worden ingezet naast reguliere behandelingen. kPNI is wetenschappelijk PNI staat voor Psycho-Neuro-Immunologie. De k voor klinisch of de c voor clinical. Deze discipline onderzoekt de wisselwerking tussen psyche (gedachten en emoties), het zenuwstelsel (onder andere neurotransmitters), het hormonale systeem en het immuunsysteem (zoals cytokinen en barrièrefuncties). De klinische toepassing hiervan wordt klinische PNI genoemd. kPNI is gebaseerd op moderne biomedische wetenschap en verbindt kennis uit onder meer immunologie, endocrinologie, neurologie, metabole geneeskunde en evolutionaire biologie. Het wordt daarom ook wel een metadiscipline genoemd: een verbindende wetenschap die verschillende specialisaties samenbrengt. Waar in de reguliere geneeskunde vaak per orgaan of specialisme wordt gekeken, richt kPNI zich op de onderlinge samenhang tussen systemen. Gedachten beïnvloeden hormonen. Hormonen beïnvloeden het immuunsysteem. Het immuunsysteem beïnvloedt de hersenen. Lichaam en geest zijn biologisch onlosmakelijk met elkaar verbonden. Verschillende zienswijzen De reguliere geneeskunde is onmisbaar, vooral binnen acute zorg, chirurgie, infectieziekten en levensbedreigende situaties. Zij werkt veelal via een gerichte interventiestrategie: medicatie, bestraling of chirurgie om een acuut probleem te behandelen. De orthomoleculaire en kPNI-benadering richt zich vooral op het herstellen van verstoorde regulatiemechanismen die vaak ten grondslag liggen aan chronische klachten. In plaats van het symptoom centraal te stellen, wordt gezocht naar de onderliggende ontregeling in energiehuishouding, ontstekingsbalans, darmbarrière, hormonale regulatie of stressas. Het symptoom is zelden het werkelijke beginpunt van het probleem. Het is meestal het zichtbare gevolg van een dieper liggend proces. Evolutie als fundament De mens is gevormd door miljoenen jaren evolutie. Onze genen, stofwisseling, stressrespons en immuunsysteem zijn afgestemd op omstandigheden die sterk verschillen van onze huidige leefomgeving. kPNI gebruikt evolutionaire biologie als referentiekader om te begrijpen waarom bepaalde moderne leefstijlfactoren kunnen bijdragen aan chronische ontregeling. Zonder kennis van onze biologische oorsprong is het moeilijk te begrijpen waarom ons lichaam reageert zoals het reageert. Energie als kern Een centraal concept binnen zowel orthomoleculaire geneeskunde als PNI is energie. Energieproductie in de mitochondriën bepaalt in grote mate de functionele capaciteit van weefsels. Wanneer de energieverdeling in het lichaam verstoord raakt, kunnen organen en systemen minder goed functioneren. Chronische klachten gaan vaak gepaard met een verstoorde energiebalans. Herstel begint daarom vaak bij het optimaliseren van de energiehuishouding. Voeding als biochemische sturing Voeding beïnvloedt alle systemen in het lichaam: het immuunsysteem, de hersenen, de hormonen, de darmbarrière en de energieproductie. Daarom wordt binnen kPNI gebruikgemaakt van inzichten uit de orthomoleculaire geneeskunde om gerichte voedingsinterventies in te zetten. Intermittent living Een belangrijk concept binnen kPNI is intermittent living: het gecontroleerd blootstellen aan korte, gezonde prikkels zoals koude, warmte, vasten of intensieve inspanning. Het moderne leven is comfortabel en constant. Juist het ontbreken van acute, kortdurende stressprikkels kan leiden tot verminderde adaptatie. Het lichaam heeft variatie nodig om veerkrachtig te blijven. Deep learning – inzicht Tijdens consulten wordt veel aandacht besteed aan uitleg. Door middel van duidelijke schema’s en tekeningen wordt inzicht gegeven in hoe systemen werken, hoe ze ontregeld raken en hoe herstel mogelijk is. Begrijpen wat er gebeurt in het lichaam vergroot motivatie, zelfregie en duurzame gedragsverandering. De echte oorzaak Binnen consulten staat het opsporen van verstoorde werkingsmechanismen centraal. Niet alleen welk orgaan klachten geeft, maar welk regulatiesysteem uit balans is geraakt. Wanneer deze onderliggende ontregeling wordt aangepakt, kan langdurige symptoombehandeling vaak worden verminderd of zelfs overbodig worden. Behandeling richt zich op het herstellen van regulatie via voeding, leefstijl, gerichte suppletie, inzicht en cognitieve herstructurering. Het doel is niet afhankelijkheid van zorg, maar herstel van zelfregulatie. Heeft u vragen of wilt u bespreken wat deze benadering voor uw situatie kan betekenen? Neem gerust contact met mij op. Ik heb de vernieuwde versie van de kPNI opleiding genoten, de 4 jarige SNRO HBO NVAO geaccrediteerde versie, er bestaan ook 2 jarige of Belgische versies, of andere landen
FREE INTRODUCTORY MEETING
During a free, 15-minute introductory meeting via secure video call, you'll get to know me personally and my approach. In this meeting, we'll briefly discuss your needs, your current situation, and your current health concerns. You'll gain clarity about my approach, and together we'll explore whether my guidance aligns with your wishes and goals. There's time to ask questions and to explore mutual trust and a good connection. The introductory meeting is completely free and without obligation. Practical information Duration: 15 minutes Format: Online For whom: New clients, individuals, and professionals Schedule directly via the online calendar.
QUESTION QUARTER
15 minutes of expertise, clarity without a process. Sometimes a full treatment plan isn't necessary. Sometimes you just need direction. The Q&A session at N-Health® is a short, powerful 15-minute consultation where you can ask one specific health question. No extensive intake. No mandatory follow-up. Even if you're not already a client. You can be completely new. Who is this suitable for? For individuals who: – Want to better understand a specific complaint, question, or insight, whether curative or preventative – Are unsure about a result or advice (this can also be obtained from someone else as a second opinion) – Want to know if a more extensive process or intake is useful – Want quick professional insight so they can move forward independently, as a kind of support along the way For professionals who: – Want to discuss a case of their clients – Want to delve deeper into a complex client of their own – Need medical or comprehensive support – Want to strengthen their own practice with substantive sparring This consultation is also suitable if you run a salon, practice, or healthcare business and need a scientifically substantiated perspective on a client's question. What can you expect? In 15 minutes, you will receive: • A sharp analysis of your question • Explanation based on neuro-immunological and metabolic connections • Concrete direction or next steps • Clarity about what is and isn't necessary No standard answers. No superficial reactions. But concentrated expertise. Personalized and often fully reimbursed for individuals with supplementary health insurance (more information further down this website) Why this works Many health questions don't immediately require a long-term process. Sometimes it's enough to: – recognize patterns – correct an incorrect assumption – identify a missing factor – or simply gain reassurance The Q&A session is intended as a professional compass. A moment of alignment. A short but valuable benchmark. And can be booked as often as desired. Practical Duration: 15 minutes Format: online For whom: new and existing clients, individuals and professionals Schedule directly via the online calendar.
EXTENDED INTAKE
An In-Depth Intake into your health. Not a superficial conversation — but a turning point. The in-depth intake at N-Health® isn't a standard initial consultation. It's a Deep Dive session. A carefully structured moment where we reflect together on your current situation, exactly as it is. No rush. No standard protocol. With room for nuance. I don't just look at symptoms. I explore mechanisms. What might be functioning differently than desired in the interaction between the brain, immune system, hormones, metabolism, and nervous system? Where is regulation disrupted? What patterns are visible? And perhaps even more importantly: why? During this comprehensive session, I will explore the following: – underlying biological mechanisms – hormonal and immunological regulation – neuropsychological patterns – metabolic processes – mental and emotional burden – lifestyle and environmental influences – potential risk factors in the present – past influences, trauma, toxicity, and the like – transgenerational burden, if applicable – factors that are no longer active but still have an effect Health develops in a coherent manner. And so does disruption. That's why we don't just look at "what's wrong," but at the larger system in which your body functions. From current situation to desired direction Together, we outline: • where you are now • the underlying dynamics • which factors hinder recovery • and what a desired situation might look like From there, a personalized treatment plan is developed that is realistic, strategic, and well-founded. No individual recommendations. No standard protocols. But a comprehensive course of action. Including preparation, analysis, and follow-up The investment in this intake encompasses more than just the consultation time. You will receive comprehensive intake forms beforehand, which will be carefully analyzed and interpreted, along with any laboratory or blood results you share. During an in-person consultation, an additional test will also be performed to assess how cell production functions at the body's cellular level. This provides valuable information about your mitochondrial capacity and energy regulation. (This test is, of course, not possible with online consultations.) Afterward, you will always receive: – a comprehensive written summary – nutritional advice – supplementation advice – lifestyle interventions – integration of psychoneuroimmunological and hormonal clusters – mental and physical focus points – the detailed treatment plan with in-depth information on what we discussed The preparation, analysis, interpretation, and follow-up are included. You don't just pay for the consultation. You invest in the entire process. Who is this intake for? For people who: – are no longer satisfied with symptom management – have undergone multiple treatments without a real breakthrough – are chronically ill or – are healthy people who want to optimize their health preventively – are curious about new insights – are willing to look deeper This isn't a quick fix. This is a foundation. Practical Duration: 75-90 minutes Format: on-site and online For whom: new clients, individuals, and professionals Schedule directly via the online calendar. (Please indicate your preference for online or on-site)
EXTENDED INTAKE FOR CANCER
N-Health® — Your flashlight in the cancer jungle. A cancer diagnosis puts life on hold. And yet everything must continue. You enter a world full of medical jargon, treatment protocols, results, uncertainties, and choices. The regular treatment is often intensive, technical, and focused on the tumor. And rightly so — that's essential. But who looks at you as a whole? The in-depth oncology intake at N-Health® is a Deep Dive consultation in which the cancer itself isn't treated, but you as a person are the central focus within the entire biological system in which you function. I work in addition to the regular treatment, in collaboration with oncologists and other medical specialists. Not as an alternative. Not in opposition. But integral, scientific. What I do during this intake: I take the time to thoroughly assess your current situation. Not only the diagnosis and treatment plan, but also: – the state of your immune system – metabolic flexibility and energy regulation – mitochondrial function – hormonal balance – neuroimmunological burden – inflammatory activity – stress axis regulation – mental and emotional resilience – lifestyle, nutrition, and recovery capacity In addition, we look at factors that may have had an influence for some time: – previous stressful moments in life – chronic stress – inflammatory history – metabolic dysregulation – transgenerational influences – old patterns that still have an impact Not to find blame. But to understand the context. Why this is important Conventional oncological treatment focuses on tumor control through surgery, chemotherapy, immunotherapy, radiotherapy, or other targeted therapies. These programs are life-saving and form the foundation if you are already undergoing such a program. My role is complementary. I investigate, among other things, how your internal environment can be supported so that: • your immune system functions optimally • your body tolerates treatments better and treatments are more effective • recovery capacity is supported • side effects are minimized where possible and conventional treatments can be more effective • inflammatory processes are regulated • energy levels remain as stable as possible or even increased • the body is in the most favorable physiological state possible And much more… A well-regulated body responds differently to treatment than an exhausted body. And this also applies to recovery. I closely follow the latest scientific developments in oncology, immunology, and metabolic therapies, so that advice is in line with current insights and can be safely integrated into your existing treatment plan. Always in coordination. Always complementary. Always responsible. From current situation to a strong foundation During the intake, we clearly map out: • where you are now • how your system functions as a whole • which factors can hinder recovery • which protective factors can be strengthened From there, we develop a personalized, supportive treatment plan, focused on: – nutrition – supplementation – lifestyle – stress regulation – neuroimmunological balance – hormonal and metabolic stability – mental support With the goal of strengthening your resilience, resilience, and internal regulation within the regular program. I also support your environment, the people around you who are also experiencing this. This includes preparation, analysis, and post-processing, and I assist with interpreting the hospital results. You will receive comprehensive intake forms beforehand. Any laboratory results and medical reports will be carefully analyzed. During an on-site consultation, cellular energy production will be examined to gain insight into the functional capacity at the body's cellular level. (This part is not available online.) Afterward, you will receive: – a comprehensive written summary of the consultation – a comprehensive explanation of all clusters (psychoneuroimmunological, hormonal, metabolic) – nutritional advice – supplementation advice (if you would like a schedule, it is not included in the consultation fee); you will, however, receive it in writing – lifestyle advice – the detailed supportive treatment plan with multiple interventions that we will explain further throughout the entire process The investment covers the entire process: preparation, analysis, interpretation, and follow-up, not just the consultation time You are not alone A cancer diagnosis often feels like entering a jungle. Unknown territory. Dense. Unpredictable. My role is not to walk the path for you. But to bring light. So that you understand what is happening. So that you can make choices based on knowledge. So that your body is as strong as possible during the journey you are on. N-Health® — Your flashlight in the cancer jungle.
