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.

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.

MCAS & HISTAMINE INTOLERANCE

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

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.

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.

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.

MCAS & HISTAMINE INTOLERANCE

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

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.

Ready to Get Started?

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...

Benefits of Resveratrol: What You Need to Know

Resveratrol is one of my favourite supplements. It is a powerful antioxidant with anti-inflammatory, neuroprotective, heart-healthy, and other health benefits.

Glutathione Benefits + Natural Ways to Increase Your Glutathione Levels

Glutathione is often called the “master antioxidant”, and rightfully so. It is a powerful compound that plays a role in immune function, cellular repair, enzymatic functions, detoxification, and many other areas of your health.

BPA May Be Hiding in Your Sports Bras

According to some recent news and petitions, many popular sports bras brands and other athletic wear also contain BPA, much higher than the allowed safe limit. Considering that many of us live in activewear, even when we are not exercising, this may pose a serious health risk. 

Red Dye in Food: Why We Should Ban It + How to Avoid It

Though red dye and other synthetic food dyes may give a fun colour to some foods, these can be incredibly harmful to your health. They may increase hyperactivity and other behavioral problems in children and may even increase the risk of cancer. Though these synthetic colours have been banned in some countries, they are still widely used in the US and Canada. 

Autism: What You Need to Know

Regardless of their specific symptoms and experience, many people with autism can benefit from functional medicine approaches, nutritional therapy, microbiome support, supplementation, and detoxification. Of course, the exact approach always depends on the individual’s specific experience and needs.

The Risks of Ultra-Processed Foods + What to Eat Instead

Ultra-processed foods are not good for your body. This is probably not shocking news. But how bad are they? 

Top Foods with Mold to Avoid + Why

Mold is a type of fungus that has the ability to grow and thrive just about anywhere under various conditions. Warm, moist, and damp environments are particularly great places to grow. Some types of mold love to grow indoors, other types prefer the outdoors, and some can be found both indoors and outdoors. Some mold can even be found on your food.

Best Oil to Use in Your Kitchen

The best oils to use in your kitchen include olive oil, coconut oil, avocado oil, and flax oil — In fact, these are the only ones I recommend.

Nutrition Tips

Top Tips to Improve Your Nutrition

Eating well can be more difficult than it sounds