TORONTO AREA FUNCTIONAL MEDICINE

Markham Integrative Medicine is a leading clinic providing functional medicine services to patients in the Greater Toronto Area, Ontario, and beyond, both virtually and in person.

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MEET DR. JOHN GANNAGE

Dr. John Gannage, MD, is a leader in Functional and Integrative Medicine and specializes in prevention and treatment of chronic disease using a combination of conventional and complementary medicine.

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MCAS & HISTAMINE INTOLERANCE

Discover Dr. Gannage’s evidence-based, functional medicine approach to managing histamine intolerance and MCAS.

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AUTISM SPECTRUM DISORDER

Learn more about the nutritional and environmental factors that may contribute to ASD, and the evolving landscape of integrative medical care for families.

Learn More

TORONTO AREA FUNCTIONAL MEDICINE

Markham Integrative Medicine is a leading clinic providing functional medicine services to patients in the Greater Toronto Area, Ontario, and beyond, both virtually and in person.

Learn More

MEET DR. JOHN GANNAGE

Dr. John Gannage, MD, is a leader in Functional and Integrative Medicine and specializes in prevention and treatment of chronic disease using a combination of conventional and complementary medicine.

Learn More

MCAS & HISTAMINE INTOLERANCE

Discover Dr. Gannage’s evidence-based, functional medicine approach to managing histamine intolerance and MCAS.

Learn More

AUTISM SPECTRUM DISORDER

Learn more about the nutritional and environmental factors that may contribute to ASD, and the evolving landscape of integrative medical care for families.

Learn More

Integrative Medicine Services

Functional Medicine

Nutrition Counselling

Intravenous Nutrient Infusions

Detoxification Therapies

Nutrient & Herbal Supplementation

Specialty Lab Testing

Biomedical Autism Treatment

Complementary Medicine for Cancer

acupuncture

Acupuncture

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Scroll Through Our Library...

Histamine Intolerance: The Game Changer in Chronic Illness

  Game-changing. Paradigm-shifting. Revolutionizing.  I am not one for hyperbole or exaggeration. But when I attend conferences, as I do often, and sift through the mounds of information, my service as a health practitioner is to bring to the clinic, on the...
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The Role of Hormones in Brain Development and Autism: Exploring How Estrogen, Progesterone, and Testosterone Influence Neurodevelopment

Hormones play a crucial role in brain development, shaping neural circuits that influence cognition, behavior, and emotional regulation. Estrogen, progesterone, and testosterone are particularly significant in this process, contributing to structural and functional...
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Hormonal Fluctuations and Gut Health: Bridging the Microbiome to Histamine and MCAS

Hormonal balance is critical for maintaining overall health, yet its influence on gut function and immune responses is often overlooked. Research increasingly shows that hormone fluctuations—such as estrogen, progesterone, and cortisol—directly impact gut integrity,...
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Understanding Estrogen Dominance: Causes, Symptoms, and Solutions

Hormonal balance is essential for overall well-being, yet many people face disruptions that can significantly impact their health. One such imbalance is estrogen dominance, a condition where estrogen levels are disproportionately high relative to other hormones,...
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Postbiotics: Unlocking the Power of Microbiome-Derived Nutrients in the Gut-Brain Axis

Postbiotics, the beneficial compounds produced by the microbiome, are revolutionizing our understanding of health and wellness. These bioactive metabolites are critical for gut health and are also emerging as key players in the gut-brain axis, influencing mood...
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Functional Medicine: Everything You Need to Know

Are you struggling with chronic symptoms or health issues? Feeling let down by conventional medicine? Looking to prevent future health problems or find natural solutions for long-term wellness? Functional medicine might be the answer. Despite its growing popularity,...
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Acupuncture for Detoxification: Ancient Techniques for Modern Wellness

In the context of detoxification, acupuncture aims to restore balance and support the body’s natural detox pathways.

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GABA: What Is It + Its Balance with Excitatory Glutamates

GABA is an important neurotransmitter that can support sleep, reduce anxiety, and aid cognitive function. However, to support your body properly, it needs to be in the right balance with another neurotransmitter called glutamate.

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Toxic Metals and Your Heart: What’s the Connection

New research suggests that toxic metal exposure, even at low levels, can increase the risk of atherosclerosis, which can lead to heart disease down the line.

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Nutrition Tips

Top Tips to Improve Your Nutrition

Eating well can be more difficult than it sounds