Welcome to MK Natural Health Services
I'm Mark Kibyuk, a Naturopath practicing in St. John's, Newfoundland, helping people take a practical, personalized approach to improving their health.
Whether you're struggling with digestive issues, bloating, ongoing fatigue, stress, or hormonal changes, my goal is to help you better understand what's contributing to your symptoms and build a plan that works for your life.
My approach combines nutrition, lifestyle changes, targeted supplementation, and functional testing when appropriate. I believe good health starts with understanding the individual, not simply following another generic health plan.
How I Can Help
Digestive Health: Support for bloating, IBS, food sensitivities, and ongoing digestive discomfort.
Hormonal Health: Personalized support for perimenopause, menopause, and hormone-related concerns.
Energy, Stress & Sleep: Practical strategies for fatigue, poor sleep, stress, and feeling run down.
Personalized Nutrition: Guidance to improve daily eating habits, support long-term health, and feel better.
I offer in-person naturopathic consultations in downtown St. John's, NL, and online consultations for clients who prefer to connect remotely.
Ready to get started? Explore my services or book an appointment to discuss your health goals.
Clinic Location: 87 Water St., St. John's, NL A1C 1A5
Phone: (709) 743-7168
What You Get When We Work Together
Your health is personal, and your plan should be too.
During our consultation, we'll look at your symptoms, health history, nutrition, and lifestyle to better understand what's contributing to how you're feeling.
From there, I'll create a personalized health plan that may include:
Nutrition: Practical food changes and meal recommendations tailored to your needs.
Supplements: Targeted, professional-quality supplements when appropriate.
Lifestyle: Strategies to support sleep, stress, energy, and daily habits.
Testing: Reviewing bloodwork or exploring additional testing when needed.
Your Plan, Delivered to Your Inbox
Following your consultation, you'll receive a written follow-up email with your personalized recommendations and clear next steps.
No guessing what to do next. Just a practical plan you can refer back to and start putting into action.
The Four Areas I Help Most
When you're dealing with digestive problems, low energy, stress, or hormonal changes, it's not always easy to know where to start.
As a naturopath in St. John's, NL, I work with clients to better understand their symptoms, explore possible contributing factors, and build practical nutrition and lifestyle plans that fit their lives.
Gut Health
Bloating, IBS & Digestive Issues
Tired of feeling bloated after meals, dealing with unpredictable bowel movements, or constantly wondering which foods will upset your stomach?
Digestive problems can affect your comfort, confidence, and daily routine.
I help clients with:
Bloating, gas, and abdominal discomfort
Constipation, diarrhea, and IBS-related symptoms
Food sensitivities and digestive concerns
Nutrition, gut health, and microbiome support
Together, we'll review your symptoms, diet, and health history, consider testing when appropriate, and develop a personalized plan to improve your digestive health.
Fatigue & Low Energy
Waking up tired, struggling through the afternoon, or relying on caffeine just to get through the day?
Persistent fatigue can have many contributing factors, and finding the right approach starts with understanding what's happening.
I help clients explore:
Blood sugar fluctuations and eating patterns
Sleep quality and daily energy habits
Nutritional deficiencies and dietary gaps
Stress, thyroid health, and other potential contributors
My goal is to help you develop a realistic plan to support your energy, improve daily habits, and feel more capable throughout your day.
Hormonal Health
Perimenopause, Menopause & More
Changes in your hormones can affect your sleep, mood, energy, menstrual cycle, and overall well-being.
Whether you're navigating perimenopause, dealing with PMS, or noticing changes in how you feel, you deserve support that considers the bigger picture.
I work with clients experiencing:
Perimenopause and menopause symptoms
PMS and menstrual-related concerns
Sleep disturbances and mood changes
Hormone-related energy and well-being concerns
We'll look at your symptoms, nutrition, lifestyle, and relevant health information to develop an individualized support plan, alongside appropriate medical care when needed.
Stress, Anxiety & Mood Support
Feeling overwhelmed, irritable, mentally exhausted, or struggling to switch off at night?
Stress and mood concerns can be influenced by sleep, nutrition, life circumstances, and physical health.
I help clients focus on:
Nutrition and daily habits that support mental well-being
Stress management and recovery
Sleep quality and evening routines
Possible nutritional and hormonal contributors
My approach is to identify practical changes that support your resilience and well-being, while recognizing when additional medical or mental health support is important.
Your Health Is Connected
Digestion, energy, mood, and hormonal health can influence one another. That's why I look at your overall health rather than focusing on one symptom in isolation.
Not sure where to start? Book a free 15-minute consultation and let's talk about your health goals.
Your Health Questions, Answered
Check out the latest articles on gut health, hormones, and fatigue written to help you take real action.
Feel Better with Our Most Popular Supplement Kits
At Mark Kibyuk Natural Health Services we don’t guess, we TEST. The human body is just too complicated to guess about ailments and treatments. Using functional labs to understand what is happening behind the symptoms is KEY to creating a plan of action which can lead to success. We pride ourselves on providing the highest level of testing available in North America to properly assess what the underlying cause of degrading health is and recommend the best clinical path forward. We only use accredited medical laboratories that focus on patient well-being, to build strong collaborative relationships with clinicians and advance the science of wellness. Please set up a consult with us to properly assess your health concerns and set up a path forward.
The tests used most at my clinic would be:
Organic Acids Test (OAT)
The Organic Acids Test is an easy at-home urine test that gives deep insight into your metabolism, gut balance, vitamin status, and energy production. It’s one of the most comprehensive ways to uncover hidden imbalances affecting mood, energy, and overall health.
Use this test if you struggle with:
Chronic fatigue or poor sleep
Mood or mental health challenges
Autism spectrum support needs
Autoimmune issues or chronic illness
Digestive concerns (candida, clostridia, bacteria)
Vitamin D Test
Vitamin D deficiency is common in Canada and strongly linked with heart disease, cancer risk, autoimmunity, mood issues, and low energy. This simple blood test checks your Vitamin D3 levels and helps guide the right supplementation to reach (and confirm) your optimal range.
Use this test if you:
Have fatigue, low mood, or anxiety
Struggle with frequent illness or autoimmune conditions
Have a family history of heart disease, stroke, or cancer
Want to track and optimize your Vitamin D supplementation
Gut Health Stool Tests (GI-MAP & GI Effects)
These advanced stool tests give a detailed picture of your gut microbiome. Bacteria, yeast, parasites, inflammation, digestion markers, and more. They help uncover the root causes of bloating, gas, cramping, food sensitivities, and chronic gut issues.
Use these tests if you:
Struggle with ongoing bloating, gas, or cramping
Suspect candida, parasites, or bacterial imbalance
Have IBS, IBD, or unexplained gut symptoms
Want answers after trying diets or supplements with no success
Think of these tests as the treasure map you’ve been looking for guiding you straight to the source of your gut health problems.
Endo Plus Hormone Panel
The Endo Plus Panel is a comprehensive saliva and urine test that evaluates key hormones including estrogen, progesterone, testosterone, cortisol, and DHEA. It helps identify imbalances that can affect energy, mood, weight, menstrual cycles, and long-term health.
Use this test if you:
Struggle with PMS, irregular cycles, or perimenopause/menopause symptoms
Have fatigue, sleep problems, or stress burnout
Notice mood swings, anxiety, or low motivation
Suspect low testosterone, estrogen dominance, or adrenal dysfunction
Want a complete picture of your hormone health before choosing treatment
If you’ve been wondering whether hormones are behind your symptoms, this panel is the roadmap to answers and balance.
Adrenocortex Stress Profile (with Cortisol Awakening Response)
This saliva-based test measures cortisol and DHEA throughout the day to assess your stress response (HPA axis). It reveals whether your adrenals are functioning normally, burned out, or overactive and how stress may be affecting your energy, mood, sleep, and metabolism.
Use this test if you:
Feel tired but wired, or struggle with fatigue and poor sleep
Have trouble handling stress or notice mood swings
Struggle with weight gain, blood sugar crashes, or cravings
Experience ongoing pain, inflammation, or frequent illness
Suspect adrenal burnout or cortisol imbalance
Think of this test as your stress blueprint showing exactly how your body is coping, and where it needs support to build resilience.
Let's Get Started
Whether you're ready to book your first appointment, schedule a follow-up, or simply have a few questions, you can choose the appointment that works best for you below.
New to MK Natural Health? Start with a free 15-minute consultation to discuss your health concerns and see whether working together is a good fit.
In-person and online appointments are available.
My Top Recommended Tools & Resources
Simple supports I use and trust to help you feel your best.
(Click on the links for more information)
Supports I Love
Squatty Potty → Better posture = easier bathroom habits.
Kala Red Light Therapy → Boost energy and recovery at home.
LMNT Electrolyte Packs → Stay hydrated with clean minerals, not sugar.
Metagenics Supplements → Professional-grade nutrients you can rely on.
Red Light Bulbs (Bedroom) → Support circadian rhythm and deeper sleep.
Gut & Digestion Supports
Digestive Enzyme Starter → for people who struggle with bloating and heaviness after meals.
Probiotic (broad-spectrum) → foundational gut support.
Blender Bottle / High-Speed Blender → for smoothies as quick nutrition.
Collagen Powder → gentle protein that supports gut lining and skin.
Books That Inspire Me
Clean Gut (Alejandro Junger, MD) → Healing the gut from the inside out.
Hashimoto’s Protocol (Dr. Izabella Wentz) → Autoimmune thyroid recovery guide.
Boundless (Ben Greenfield) → The ultimate biohacking reference.
Why We Sleep (Dr. Matthew Walker) → Transform your energy through sleep.
Guides To Support You
Collagen User Guide- Learn how to choose the right collagen, when to use it, and how it supports gut, skin, and joint health.
How to Get Kids to Eat More Veggies- Tried-and-true strategies (and sneaky recipes) to get more greens into picky eaters.
Building a Better Lunch Box-Smart, kid-friendly lunch ideas that balance nutrition, energy, and taste no stress required.

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Let's Get Serious About Inflammation
I see a constant stream of patients at my clinic and issues with inflammation are almost always a concern. Please watch our presentation on Inflammation and its effects that could be impacting your health!
Inflammation can cause a myriad of health issues in the body. Are you feeling depressed? Do you have stiff joints? Back pain? Digestive issues? Experiencing weight gain? Inflammation could be the cause. Watch our presentation on inflammation and its effects on the body.