Dr. John Gannage, MD

Dr. John Gannage, MD, CCFP, FMAPS, is a licensed physician who practices Functional Medicine and is considered an expert in the field of Complementary and Alternative Medicine (CAM). Dr. Gannage has been awarded Fellowship with the Medical Academy of Pediatric Special Needs (MAPS) in recognition of his extensive training and knowledge in the field of developmental disorders including autism. He is also known for his expertise in treating adults with complex, chronic illness; in particular, Mast Cell Activation Syndrome (MCAS), mast cell instability in general, and histamine intolerance. In addition to his clinical work, Dr. Gannage has researched, developed, and presented numerous educational programs for both patients and practitioners on important integrative medicine topics, and written several articles for publication. Dr. Gannage is accepting new patients in Markham, Ontario and virtually. Dr. Gannage’s services include IV nutrient infusions, chelation therapy, and Functional Medicine treatment for chronic conditions including IBS, SIBO, autoimmune conditions, fibromyalgia, diabetes, hormonal imbalances, heart disease, and more. Dr. Gannage’s primary website is integrative-medicine.ca/, and his histamine intolerance website can be found here www.histamined.com/.

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