Is histamine intolerance the cause of your symptoms?
Get the patient-friendly guide used by Dr. Ruscio to screen for histamine intolerance — with a complete food list, scoring instructions, and clear next steps included.
Evidence Based
APPROACH
1-Week
TRIAL PROTOCOL
Root Cause
FOCUSED
Get Your Free Histamine Guide
See if histamine is at the root of your symptoms and know what to do next.
- The patient-friendly guide used by clinicians
- Complete low-histamine food list included
- Clear protocol to test if this applies to you
- Something concrete to bring to your doctor
UNDERSTANDING HISTAMINE INTOLERANCE
Why are the symptoms so hard to pin down?
Histamine intolerance is rarely about histamine alone. The root cause is usually something happening in your gut — and understanding which mechanism applies to you changes everything about how you address it.
Too much histamine produced
Certain gut imbalances and dietary patterns can drive histamine levels far higher than your body can handle.
Impaired histamine clearance
Your body relies on a specific enzyme to break histamine down. When that system is compromised, levels accumulate.
Both happening at once
For many people, it's a combination, and the guide walks you through how to identify your pattern.
TREATMENT APPROACHES
There's a clear path to feeling better
Management typically starts with diet, supports gut healing over time, and uses targeted interventions where needed. The guide covers what to try first and in what order.
Natural Approaches
Diet-first strategies, specific supplements, and gut-healing protocols — ranked by what to try first.
Covered in the guideOTC Medications
Which antihistamines work for which symptoms, and when medication makes sense alongside diet changes.
Covered in the guideFREE RESOURCE
Get your free histamine intolerance guide
Get the complete guide used by Dr. Ruscio to identify and address histamine intolerance — so you know exactly whether this applies to you and what to do next.
Send me the complete guide
See if histamine is at the root of your symptoms and know what to do next.
- The patient-friendly guide used by clinicians
- Complete low-histamine food list included
- Clear protocol to test if this applies to you
- Something concrete to bring to your doctor
FURTHER READING
If you’re investigating histamine, these are worth reading next
Diamine Oxidase and Histamine Intolerance: A Clinical Guide
Can I Take Quercetin for Histamine Intolerance?
ABOUT THE AUTHOR
Dr. Michael Ruscio, DC
Dr. Ruscio is a clinical researcher, author, and functional medicine practitioner who has spent over a decade helping patients recover from complex, chronic health conditions — including histamine-related illness.
His approach is progressive but practical: he focuses on evidence-informed strategies that work, avoids unnecessary testing and supplementation, and keeps recommendations realistic and affordable for real people.