Digestion
At Greystones Health, we’ve spent over 12 years helping people just like you reclaim their lives from digestive distress. As Naturopathic Doctors specializing in gut health, we don’t just treat symptoms—we uncover the root cause of your discomfort and guide you toward lasting, real relief.
If you’ve been living with bloating, pain, or unpredictable bathroom habits, we understand how exhausting and isolating it can feel. You may have been told everything looks "normal," but you know your body isn’t functioning the way it should. That’s where we come in—with answers, empathy, and a path forward.
💚 We specialize in natural care for:
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Irritable Bowel Syndrome (IBS)
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Small Intestinal Bacterial Overgrowth (SIBO)
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Acid Reflux & GERD
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Constipation & Gastritis
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Crohn’s Disease & Ulcerative Colitis
Our proven Digestive Reboot Plan has helped thousands of people feel better—faster—and rebuild their gut health to prevent future flare-ups. With advanced lab testing and in-depth health assessments, we get to the heart of your unique digestive challenges, so we can create a plan that works for you.
What to expect:
Our approach is rooted in targeted dietary and lifestyle changes, supported by natural therapies that gently guide your body back to balance. While food is at the core of healing, our Naturopathic Doctors may also recommend personalized herbal and nutritional supplements—backed by research and years of clinical success—to ease your symptoms and accelerate recovery.
Imagine what it would feel like to eat without fear, to live without daily discomfort, and to finally feel in control of your health. At Greystones Health, we’re here to help you get there—one step at a time.
Digestive Reboot
In 2013, Dr. Joseph Steyr created the Digestive Reboot—a transformative gut health program that blends the wisdom of classical naturopathic diets with cutting-edge scientific research, including the low FODMAP diet. But what truly sets this program apart is Dr. Steyr’s unique background in Ecology.
Drawing from his training in ecosystem science, Dr. Steyr recognized a powerful truth: the gut is not just an organ—it’s a complex, living microbiome. And yet, most conventional diets and gut health programs overlook this fundamental reality.
By applying ecological principles to digestive health, Dr. Steyr filled in the missing gaps that others had ignored. He understood how balance, biodiversity, and environmental support are just as vital in the gut as they are in nature.
Over the past decade, the Digestive Reboot has been continually refined and improved, helping countless individuals find relief from a wide range of digestive concerns—from IBS and SIBO to acid reflux and chronic bloating. This program doesn’t just manage symptoms—it supports the entire ecosystem of your gut for long-term healing and resilience.
Our Success Story
Driven from a passion for natural health our co-founder Michelle Heighington started as a Holistic Nutritionist in 2005. She was jointed by
Dr. Joseph Steyr in 2013 to form Greystones Health to offer Toronto top-rated natural health support.
4..9 ⭐⭐⭐⭐⭐rating
4..8 ⭐⭐⭐⭐⭐rating
We are rated as leading naturopathic doctors for toronto
4..9 ⭐⭐⭐⭐⭐rating
4..8 ⭐⭐⭐⭐⭐rating
Call us at (416)636-6675
Book a Free meet and greet to learn more
Irritable Bowel Syndrome (IBS)
At Greystones Health, we’ve helped thousands of people break free from the frustrating and often debilitating symptoms of Irritable Bowel Syndrome (IBS). Whether you’re struggling with bloating, gas, cramping, pain, constipation, or diarrhea—or all of the above—we understand how much these symptoms can interfere with your life.
That’s why we created our signature Digestive Reboot program: a results-driven, naturopathic protocol designed to calm your gut quickly and build long-term digestive resilience.
But we don’t stop at symptom relief. Our approach is rooted in finding and treating the underlying causes of your IBS. Using advanced stool testing, we get a clear picture of what’s really happening inside your digestive system—pinpointing microbial imbalances, inflammation, or infections that could be triggering your symptoms. We also offer food intolerance testing to help you identify hidden triggers with confidence.
Our Digestive Reboot Program Follows 3 Powerful Phases:
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Restore: Rebalance your gut flora and reduce symptoms fast.
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Repair: Heal the gut lining and reduce inflammation.
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Rebuild: Strengthen your digestion, increase food freedom, and prevent relapse.
With expert guidance from our naturopathic doctors, easy-to-follow meal plans, gut-healing recipes, and carefully selected natural products, we make the healing journey as simple—and effective—as possible.
If you’re ready to feel lighter, energized, and back in control of your health, let’s start with the root cause. Book your appointment today and discover how naturopathic IBS care can transform your life.
Acid Reflux
Tired of the burning sensation in your chest after meals? You’re not alone. Acid reflux—also known as heartburn or gastroesophageal reflux disease (GERD)—affects millions and can seriously impact your daily life. It occurs when stomach acid flows back into the esophagus, where the delicate tissue isn’t equipped to handle it. This can cause that uncomfortable burning sensation, a bitter taste in the mouth, and even disrupt your sleep.
At Greystones Health, we take a natural, root-cause approach to healing acid reflux. One of the most common underlying issues is a weakened gastroesophageal sphincter, a small valve that normally keeps food and acid securely in the stomach. When it becomes weak or dysfunctional, it allows acid to travel upward—causing irritation and discomfort.
While many people often turn to proton pump inhibitors (PPIs) to reduce stomach acid, research is uncovering a concerning reality: long-term use of PPIs can lead to nutrient deficiencies, increased risk of infection, bone loss, and organ stress. That’s why many people are now seeking a more sustainable solution.
A Better Way to Heal
Our naturopathic doctors offer a holistic and effective alternative to manage and even resolve acid reflux symptoms—without compromising your health.
✔ Herbal Medicine – Targeted, fast-acting herbs to reduce symptoms safely
✔ Nutritional Guidance – Learn what to eat (and what to avoid) to calm your digestive system
✔ Lifestyle Counselling – Gentle shifts in habits that have a big impact on long-term gut health
✔ Functional Testing (if needed) – To uncover any deeper root causes such as H. pylori, low stomach acid, or inflammation
Whether you’ve been on medication for years or are newly experiencing symptoms, we’re here to help you reclaim comfort and confidence in your body—naturally.
Food Intolerance
Food intolerances are more common than you think—and often go undiagnosed. They can quietly trigger a wide range of health issues, including:
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Bloating, constipation, and other digestive issues
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Skin conditions like acne, eczema, and psoriasis
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Joint pain, headaches, fatigue, and brain fog
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Mood challenges such as anxiety, depression, or irritability
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Conditions like ADHD and asthma
Unlike food allergies, which trigger immediate reactions (IgE response), food intolerances involve a delayed immune response (IgG) that can appear 24–72 hours after eating, making them difficult to pinpoint without proper testing.
At Greystones Health, we offer a science-backed blood test through LifeLabs, one of Ontario’s most trusted labs. Our standard test screens for 120+ common foods, with the option to expand as needed—helping us identify your unique triggers so we can begin a targeted healing plan.
Inflammatory Bowel Disease (IBD)
Inflammatory Bowel Disease (IBD) isn’t just one condition—it’s a group of chronic, immune-related digestive diseases, primarily Crohn’s disease and Ulcerative Colitis (UC). These conditions involve ongoing inflammation of the digestive tract, often causing symptoms like abdominal pain, urgent bowel movements, blood in the stool, fatigue, and weight loss.
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Crohn’s disease can affect any part of the digestive tract, from mouth to anus.
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Ulcerative Colitis is limited to the colon and often presents with blood in the stool.
Both can be debilitating, with painful flare-ups followed by periods of remission that may last months or even years. Unlike IBS, which is not considered an immune disorder, IBD involves an autoimmune component, where the body mistakenly attacks its own digestive tissue.
Our Naturopathic Approach to Healing IBD
At Greystones Health, we take a root-cause, gut-focused approach to IBD. Our comprehensive treatment options could include:
✔ IgG Food Sensitivity Testing – to identify inflammatory food triggers (via blood testing - extra cost for this)
✔ Natural Anti-Inflammatory Herbs – to soothe and calm intestinal inflammation
✔ Gut Lining Repair – using targeted nutrition and supplements to support healing and reduce flare-ups
We don’t just manage symptoms—we support deep healing and long-term digestive resilience.
Candida
Candida is a naturally occurring yeast (Candida albicans) found in the human digestive tract. In small amounts, it plays a helpful role in digestion and nutrient absorption. But when Candida grows out of control—often due to antibiotics, high-sugar diets, or toxin exposure—it can wreak havoc on your health.
When overgrown, Candida can damage the lining of your intestines, leading to leaky gut, chronic inflammation, and a wide range of symptoms that may seem unrelated at first.
Signs of Candida Overgrowth May Include:
✔ Persistent bloating, gas, or digestive discomfort
✔ Frequent yeast infections, athlete’s foot, or nail fungus
✔ Ringing in the ears, dizziness, or Meniere’s-like symptoms
✔ Ongoing nasal congestion or excessive earwax
✔ Brain fog, fatigue, or mood swings
Candida can show up differently in everyone, which is why proper testing and a personalized approach are key.
Candida overgrowth can be stubborn—but with the right support, it can be resolved.
Let’s work together to heal your gut, restore your energy, and bring your body back into balance.
Small Intestinal Bacterial Overgrowth (SIBO)
Small Intestinal Bacterial Overgrowth (SIBO) is exactly what it sounds like—an overgrowth of bacteria in the small intestine, where bacteria are typically present in much smaller amounts. This bacterial imbalance can cause a cascade of digestive issues and symptoms that go far beyond the gut.
While SIBO shares some similarities with Candida overgrowth, it often presents with chronic constipation and may temporarily improve with antibiotic use. But the relief is usually short-lived—because true healing requires addressing the root cause.
Common Symptoms of SIBO:
✔ Persistent bloating and abdominal discomfort
✔ Excessive gas or flatulence
✔ Constipation or diarrhea (or alternating between the two)
✔ Chronic fatigue or brain fog
✔ Nutrient deficiencies due to poor absorption
When left untreated, SIBO can interfere with your body’s ability to absorb vital nutrients, leading to long-term health issues that can affect your energy, mood, and overall vitality.
With the right support, you can reclaim your digestive health and energy.
Let us help you clear the confusion and build a plan that works—so you can feel better for good.
Constipation
Constipation isn’t just uncomfortable—it can impact your energy, mood, and overall well-being. Whether you're going days without a bowel movement or dealing with hard, painful stools, it’s your body’s way of telling you something’s out of balance.
At Greystones Health, we look beyond the surface to understand why constipation is happening. Is it stress? Dehydration? A sluggish digestive system or bacterial imbalance? Every case is different, and that’s why we personalize every treatment.
Common Symptoms of Constipation:
✔ Fewer than three bowel movements per week
✔ Bloating and abdominal discomfort
✔ Straining or pain during bowel movements
✔ Small, hard, or dry stools
✔ Hemorrhoids or blood in the stool
Relief is possible—without relying on laxatives or quick fixes. Let us help you restore healthy, regular digestion so you can feel lighter, more comfortable, and fully energized.
Chronic Loose Stools or Diarrhea
Diarrhea is a problem that affects everyone at some point. However when chronic loose stools occur, it poses a more serious concern. Chronic diarrhea is a daily occurrence that usually lasts for about four weeks. It is usually caused by intestinal parasitical infection, yeast or bacterial over growth, though sometimes due to an excess of a certain substance in the diet. Frequent loose stools increase risk of getting dehydrated as sufferer passes a large volume of fluids. Treatment starts by changing the diet to ensure stools start to quickly become formed and then we identify the why the problem started.
Indigestion
Indigestion is the general term used to describe symptoms that are experienced during or after a meal, including uncomfortable feeling of fullness and a burning pain in the upper abdomen, among others. It may be caused by conditions like peptic ulcer, pancreatic abnormality, GERD, hormal changes or even pain. Indigestion is almost always a sign of other health concerns and it is important to take a broad look at the person’s health history.