Naturopathic Doctor for Histamine Intolerance
Root-Cause Treatment in Scottsdale for Lasting Relief
Dr. Dan Wool, NMD | Arizona-licensed Naturopathic Physician | Gastroenterology & Hormone Specialist | 8+ Years Experience
Comprehensive Histamine Intolerance Treatment that Addresses Root Causes
What is Histamine Intolerance? Histamine intolerance can be a complex condition that profoundly impacts digestive health and overall wellbeing. It occurs when mast cells inappropriately release excessive histamine and other inflammatory mediators, causing widespread symptoms.
Histamine intolerance develops when the body cannot adequately break down dietary histamine due to insufficient DAO (diamine oxidase) enzyme activity or gut dysfunction. Common symptoms include digestive distress, skin reactions, headaches, brain fog, and anxiety — often worsening after eating high-histamine foods or during times of stress.
As a naturopathic doctor specializing in gastroenterology, I provide evidence-based testing and treatment protocols that go beyond symptom management to address the underlying factors driving inflammation and histamine intolerance.
Histamine issues are often mismanaged with long-term medications that suppress (or chase around) symptoms while ignoring root causes. Through comprehensive assessment, advanced testing, and personalized natural therapies, we can identify what's truly causing your histamine overload and create a treatment plan using dietary interventions, herbal protocols, gut restoration, and mast cell stabilizing strategies.
Why our approach to Histamine Intolerance is Different. My approach focuses not just on reducing symptoms, but on preventing recurrence by identifying and correcting the root causes — such as gut barrier dysfunction, SIBO, food sensitivities, DAO deficiency, or dysbiosis — that allowed immune dysfunction and histamine intolerance to develop in the first place.
We serve patients throughout the entire Phoenix metropolitan area including Scottsdale, Fountain Hills, Paradise Valley, Mesa, Gilbert, Tempe and Chandler. Virtual tele-health consults are available for patients throughout Arizona.
Dr. Wool takes a comprehensive approach to gut health, Histamine Intolerance. Book your free 15 minute discovery call today!
Dr. Wool's Treatment Philosophy
Root Cause Focus
Histamine intolerance are symptoms of deeper dysfunction. Identifying why the immune system is overreacting — whether from SIBO, leaky gut, DAO deficiency, food sensitivities, or chronic inflammation — prevents recurrence and ensures lasting results beyond symptom suppression.
Test, Don't Guess
Accurate testing for DAO enzyme activity, mast cell mediators, food sensitivities, SIBO, gut microbiome, and nutrient deficiencies ensures we're treating the right condition with the right protocol, avoiding trial and error.
Herbal First
Herbal and nutritional approaches support your body's healing without the side effects and long-term complications of antihistamine medications that can create dependency and worsen gut function over time.
Personalized Protocols
While the diagnosis may be similar, every patient's histamine triggers are unique. You'll receive a customized treatment plan based on your test results, symptoms, health history, and individual triggers.
DO ANY SOUND FAMILIAR?
The Main Types of Histamine Intolerance
Not all histamine issues are the same. Understanding your specific type helps guide treatment
Histamine Intolerance
DAO enzyme deficiency pattern where dietary histamine accumulates because the body cannot break it down efficiently.
• Low DAO enzyme activity
• Symptoms after high-histamine foods
• Worsening with aged/fermented foods
• May have genetic DAO variants
Diet-Triggered Histamine Overload
Food-focused histamine accumulation from consistent consumption of high-histamine foods without adequate DAO function.
• Strong food-symptom correlation
• Reactions to leftovers
• Alcohol intolerance
• Rapid improvement with diet change
SIBO-induced Histamine
Bacterial overgrowth in the small intestine producing excess histamine, causing both GI and systemic symptoms.
• Positive SIBO breath test
• Bloating and digestive symptoms
• Histamine-producing bacteria
• Improves with SIBO treatment
Common Histamine Symptoms We Address
Digestive Symptoms
• Chronic diarrhea or IBS
• Abdominal pain and cramping
• Bloating and gas
• Nausea after eating
• Food sensitivities
• Reflux and heartburn
Systemic Reactions
• Flushing and hives
• Headaches and migraines
• Brain fog and fatigue
• Anxiety and mood changes
• Heart palpitations
• Difficulty breathing
Related Symptoms
• Reactions to aged or fermented foods
• Alcohol intolerance
• Worsening with leftovers
• Sensitivity to food additives
• Histamine-liberating foods
• Stress-triggered flares
A Natural Approach to Gut Inflammation
Restore Gut Health
Heal intestinal permeability ("leaky gut"), balance microbiome and optimize digestive function
Reduce Histamine Load
Personalized low-histamine protocols and natural histamine-stabilizing interventions
Identify Root Causes
Comprehensive testing to uncover gut dysbiosis, DAO deficiency, SIBO, and other underlying factors
Long-Term Strategies
Sustainable strategies to expand food tolerance and prevent symptom recurrence
Comprehensive Histamine Intolerance Services
Diagnostic Testing
Advanced functional testing to identify the root causes of your symptoms.
• Comprehensive stool analysis
• SIBO breath testing
• Food sensitivity panels
• DAO enzyme assessment
• Serum tryptase and histamine
• Intestinal permeability testing
Dietary Protocols
Personalized nutrition plans designed to reduce histamine burden and heal the gut.
• Custom low-histamine meal plans
• Elimination diet guidance
• Food reintroduction protocols
• Nutrient density optimization
• Identify histamine-liberating foods
• Cooking and storage strategies
Natural Therapeutics
Evidence-based naturopathic treatments to address inflammation and support healing.
• DAO enzyme supplementation
• Supplemental nutrients
• Anti-inflammatory botanicals
• Gut healing protocols
• Methylation support
• Peptide considerations (BPC-157)
Lifestyle Optimization
Holistic strategies to reduce digestive stress triggers and support overall wellbeing.
• Stress management
• Sleep optimization
• Environmental toxin reduction
• Exercise recommendations
• Nervous system regulation
• Mindfulness practices
Ongoing Support
Continuous care to monitor progress and adjust protocols for optimal outcomes.
• Regular follow-up visits
• Symptom tracking & analysis
• Protocol adjustments
• Flare management strategies
• Lab result interpretation
• Food reintroduction guidance
Antihistamine Tapering Support
Safe protocols for reducing dependency on antihistamine medications when appropriate.
• Gradual reduction schedules
• Natural support during transition
• Monitoring and adjustment
• Rebound symptom prevention
• Long-term histamine balance restoration
• DAO function optimization
Hormonal Support
Addressing estrogen-histamine connection for patients with hormonal concerns.
• Hormone testing and analysis
• Estrogen metabolism support
• Progesterone optimization
• Menstrual cycle tracking
• Natural hormone balancing
• Bioidentical hormone therapy when indicated
The Wool Method for Gut Healing
A personalized four-step process to restore digestive health
What Conventional Medicine Often Misses with Histamines
Conventional Medicine Approach
Primary Focus
Symptom suppression
Main Treatment
PPIs, H2 blockers, antacids
Treatment Duration
Indefinite medication use
Testing Approach
Endoscopy when severe; often symptom-based treatment
Side Effects
Nutrient depletion, increased infection risk, bone loss
Long-term Success
30%+ take meds indefinitely; symptoms recur when stopped
Addresses
Acid levels only
Dr. Wool's Naturopathic Approach
Primary Focus
Root cause resolution
Main Treatment
Herbal protocols, diet, gut healing
Treatment Duration
2-6 month intensive protocol
Testing Approach
Comprehensive gut, DAO, microbiome, SIBO, food sensitivities
Side Effects
Minimal; supports overall health
Long-term Success
88% achieve lasting improvement; 92% reduce triggers
Addresses
Gut health, DAO function, triggers, inflammation, root causes
Transparent Pricing Details for Histamine Intolerance Patients*
*Pricing for Histamine Intolerance patients is higher than our
standard visits. This complex casework requires more research and planning time for the provider.
Pre-requisite: Mental-Emotional Counseling
Histamine intolerance cases often have a trauma component. Not getting well or not eating well for long periods of time also creates its own anxieties. (So do the histamines themselves, which cross the blood brain barrier). While Dr. Wool treats the physical symptoms and root cause patterns, we have our greatest success when partnered with a counselor to address the mental-emotional components of the syndrome. Therapies like Somatic Exerpiencing and EMDR can be game changers for patients. Most therapists tend to charge $100-400 per session; many have health insurance relationships.
Pre-requisite: Immunology MCAS Diagnosis
Histamine Intolerance is one form of Mast Cell Activation Syndrome (MCAS), which can be complex. We require a prior MCAS diagnosis by an Immunologist prior to engaging in our own Histamine Intolerance work together. Immunologists are in the best seat to efficiently and cost-effectively diagnose and classify MCAS. While I am a doctor and diagnose disease too, we can team up with your Immunology specialist, whose assessment can save us a lot of time and frustration in our clinical, naturopathic treatment process. They also enable you to use your health insurance; our clinic does not take insurance of any kind.
Initial visit (up 90 minutes): $695
We will deep dive into your unique health history. Patients are encouraged to upload past labs and medical notes prior to this visit. We will ask lots of questions and start to help connect the dots. We may make some early intervention suggestions. We typically order investigative labs after this visit.
Investigative labs: ~$400 each (average)
Labs (blood, stool, urine, etc) are encouraged within one week of the initial visit and general take about 2 weeks to receive results. We're not here to run up a bill, we order labs based on need to establish bases for health, fill in gaps and support each case.
Review of findings (up to 60 minutes): $395
We marry your initial intake with the lab data and start a comprehensive treatment plan geared to your unique presentation. We review findings to educate you on the specific patterns of your presentation.
Follow-ups (up to 45 minutes): $295
Formal progress updates and adjustments to treatment plan to maintain your healing and develop momentum.
Frequently Asked Questions about Histamine Intolerance
What's the difference between MCAS and histamine intolerance?
Mast Cell Activation Syndrome (MCAS) involves inappropriate activation of mast cells, releasing excessive histamine and other inflammatory mediators throughout the body. Histamine intolerance occurs when the body cannot adequately break down dietary histamine due to insufficient DAO (diamine oxidase) enzyme activity or gut dysfunction. Many patients have overlapping features of both conditions, and both benefit from comprehensive naturopathic care targeting gut health and histamine reduction.The key difference is that MCAS is about overproduction of histamine from your own mast cells, while histamine intolerance is about the inability to break down histamine from food. However, they often coexist, and addressing gut health typically helps both conditions.
Will I need to follow a low-histamine diet forever?
Not necessarily. The low-histamine diet is often a therapeutic tool used during the healing phase while we address root causes like SIBO, dysbiosis or leaky gut. As your gut health improves and DAO function is restored, most patients can gradually reintroduce higher-histamine foods. The goal is to expand your food tolerance while maintaining symptom control through sustainable gut health practices.Many of my patients find they can eat a much more varied diet after 6-12 months of treatment, though some continue to avoid their worst triggers. The key is healing the gut so your body can handle normal amounts of dietary histamine again.
What are the first symptoms of Histamine Intolerance?
Early histamine intolerance symptoms often include unexplained flushing or hives, digestive issues like bloating and diarrhea, headaches or migraines, brain fog, fatigue, and anxiety that seems to worsen after eating certain foods. Many patients describe feeling like they're "allergic to everything" or experiencing random reactions that don't fit a clear pattern.
What's the connection between histamines and gut health?
The gut houses approximately 70% of your immune system, including many mast cells. Gut dysfunction — such as "leaky gut", SIBO, dysbiosis, or chronic inflammation — can trigger histamine release and reduce DAO enzyme production, which is needed to break down histamines. Many histamine intolerance cases improve dramatically when underlying gut issues are addressed. Certain bacteria in the gut actually produce histamine, so an overgrowth of these bacteria (common in SIBO) can flood your system with histamine. Healing the gut microbiome is often the key to resolving histamine issues long-term.
Do I need to avoid all high-histamine foods forever?
No. Initially, we use a low-histamine diet as a therapeutic intervention to reduce your histamine burden while we work on healing your gut and improving DAO function. As treatment progresses and your body's ability to process histamine improves, most patients can systematically reintroduce many higher-histamine foods. The goal is food freedom, not lifelong restriction. By addressing root causes like DAO deficiency, gut dysbiosis, and inflammation, we can expand your diet tolerance significantly. Some patients may always be more sensitive to aged cheeses or fermented foods, but most can return to eating a normal, varied diet.
Can stress trigger histamine symptoms?
Absolutely. Stress is one of the most common triggers for chronic inflammation and histamine release. When you're stressed, your body releases cortisol and other stress hormones that can directly activate mast cells to release histamine. Many patients notice their symptoms worsen during periods of high stress, lack of sleep, or emotional upheaval. This is why our treatment approach includes stress management, nervous system regulation, and lifestyle optimization alongside dietary and supplement protocols. Addressing the mind-body connection is essential for long-term management and healing.
What supplements are best to address high histamine?
The most effective natural mast cell stabilizers include quercetin (a powerful bioflavonoid), vitamin C, DAO enzyme supplements, and omega-3 fatty acids. Other helpful supplements include vitamin B6, magnesium, methylation support (methylfolate, methylB12), and gut-healing nutrients like L-glutamine and zinc carnosine. However, the right supplement protocol varies significantly between patients based on testing results. Some patients need SIBO treatment, others need hormone balancing, and many need comprehensive gut restoration. This is why testing and personalized protocols are so important — what works for one person may not work for another.
Can you help if I've already been diagnosed with MCAS by another provider?
Absolutely. I actually require this diagnosis first. Then I can work collaboratively with your existing healthcare team and can provide complementary naturopathic care alongside conventional treatment. Many patients seek naturopathic support to address underlying gut issues, implement dietary changes, optimize nutrition, and utilize natural mast cell stabilizers to reduce medication dependence when appropriate. I'm happy to coordinate with your allergist, immunologist, or other specialists to ensure comprehensive care. My focus is on the root-cause healing that conventional medicine often doesn't address, which can significantly improve your outcomes and quality of life.
What makes your approach to histamine intolerance different?
As a naturopathic doctor specializing in gastroenterology, I focus on identifying and treating the root causes of histamine intolerance - usually gut and hormones - rather than just chasing or managing symptoms. This includes comprehensive GI testing, personalized gut healing protocols, evidence-based natural therapeutics, and sustainable dietary strategies. My goal is to help you achieve lasting improvement and food freedom, not lifelong dietary restriction or medication dependence. I also take the time to understand your unique triggers, symptom patterns, and health history to create a truly personalized protocol. You're not just given a generic low-histamine diet — we dig deeper to find out WHY your immune system is overreacting and fix that underlying problem.
What to Expect on Your Healing Journey
Ready for Histamine Intolerance Relief?
Book Your Free Discovery Call Today!
With caring, patience and a comprehensive approach, Dr. Dan Wool is the best naturopathic doctor in Scottsdale, AZ to treat Histamine Intolerance. We serve patients throughout the entire Valley of the Sun including Scottsdale, Paradise Valley, Fountain Hills and Mesa and across the state of Arizona via tele-health. Schedule a free 15 minute consultation online today.