Learn how to outsmart histamine.

The first course of its kind on managing histamine levels and histamine intolerance, led by an experienced Functional Medicine doctor. Learn on your own time, from anywhere.

Meet Your Instructor

Dr. John Gannage, MD

Dr. John Gannage, MD, is a clinician, educator, and expert in the field of Functional Medicine. Dr. Gannage founded and is currently the medical director of Markham Integrative Medicine, where he has been emphasizing prevention and treatment of chronic disease through nutrition, detoxification, immune system modulation and reduction of oxidative stress since 1998. In 2013, Dr. Gannage described histamine intolerance as the "next game-changer in chronic illness". Over the last several years, histamine intolerance has proven worthy of the hyperbole. Dr. Gannage currently consults with patients around the world on chronic illness and histamine intolerance, and developed this course in order to provide help and guidance to as many people as possible.

What you'll learn

By the end of this course, you'll understand:

  • The Low Histamine Diet

    Learn what to eat, what to avoid, and why. Plus: downloadable diet trackers, Dr. Gannage's favorite food guide, and 20+ nutritionist-developed low histamine recipes.

  • Root Causes

    Understand the various factors that influence histamine production, breakdown, and mast cell activation, and learn how to identify the causes & contributors that apply to you.

  • Healing Your Gut

    Gut health is one of the most important and overlooked pieces of the puzzle when it comes to histamine intolerance. Learn how to support your gut with a step-by-step protocol.

  • Supplements

    What role do supplements play in managing histamine intolerance? Learn how and when different supplements and natural treatments can be beneficial.

  • Testing Strategies

    Get an inside look at the most helpful functional medicine tests that can be used to pinpoint imbalances related to histamine production or metabolism and mast cell activation.

  • Mast Cell Triggers

    Learn how to identify and manage the most common (and sometimes surprising) mast cell triggers, from stress and heat to estrogen and medications.

Put the pieces together.

There's no one-size-fits-all for histamine intolerance treatment. The information available online is scattered and confusing, and practitioners may not always understand your situation. We're giving you the tools you need to identify and understand your unique triggers and imbalances, empowering you to outsmart histamine and mast cell activation.

Here's a Preview...

Watch Intro Video

What else do I need to know about this course?

  • Instantly access all video modules and 12+ downloads including personalized trackers, planners and resource guides to keep you on track.

  • Learn from an expert MD with 25+ years of Functional Medicine experience, wherever you are in the world.

  • Get lifetime access to all course materials, including any new content or updates.

Get Started Now (NEW Lower Price!)

Instantly access the complete Outsmart Histamine course including all video modules and downloadable resources.

Disclaimer: The information contained here and within this course is for educational purposes only and is not intended to diagnose, treat, or cure any disease. One should always seek advice from a qualified practitioner before making any changes.