Mast Cell Activation Syndrome (MCAS)
The MCAS Center at Root & Branch Functional Medicine provides education, personalized evaluations, and functional medicine support for individuals experiencing symptoms associated with Mast Cell Activation Syndrome (MCAS), histamine intolerance, and complex immune-related conditions. Our goal is to help identify factors that may be contributing to your symptoms and develop an individualized plan to support your long-term health.
Who Is the MCAS Center For?
This resource may be helpful if you're experiencing symptoms such as:
Histamine intolerance
Unexplained food reactions
Flushing
Itching
Hives
Brain fog
Anxiety
Dizziness
Fatigue
Chemical sensitivities
Mold-related illness
Long-standing inflammatory symptoms
If you've been searching for answers and still don't feel like you've found them, you're not alone.
What Is Mast Cell Activation Syndrome (MCAS)?
Mast cells are part of the immune system and play an important role in protecting the body by responding to infections, allergens, and injury.
In individuals with Mast Cell Activation Syndrome (MCAS), mast cells may release inflammatory mediators more frequently or inappropriately than expected. These mediators, including histamine, cytokines, leukotrienes, and prostaglandins, can affect multiple body systems and contribute to a wide variety of symptoms.
Because symptoms often involve several different systems of the body, MCAS can sometimes be difficult to recognize and evaluate.
What Factors May Influence MCAS?
Every person's health story is unique.
At Root & Branch, our functional medicine approach looks for factors that may influence mast cell activation or contribute to ongoing symptoms.
Areas we commonly evaluate include:
Mold exposure
Mycotoxins
Chronic infections
Gut microbiome imbalances
Intestinal permeability
Environmental toxins
Nutritional deficiencies
Chronic stress
Lifestyle factors
Our goal is not to assume every factor is involved, but to develop a personalized understanding of your health.
Common Symptoms Associated with MCAS
Symptoms can vary significantly from one individual to another.
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Brain fog
Headaches
Dizziness
Anxiety
Difficulty concentrating
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Bloating
Acid reflux
Nausea
IBS-like symptoms
Food sensitivities
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Flushing
Hives
Itching
Sensitive skin
Rashes
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Nasal congestion
Throat irritation
Shortness of breath
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Rapid heart rate
Heart palpitations
Blood pressure fluctuations
Lightheadedness
Functional Medicine Testing for MCAS
Testing recommendations are individualized and based on your symptoms, history, and clinical evaluation. Depending on your situation, recommendations may include:
GI-MAP® Stool Testing
Evaluates gut microbiome balance, digestive function, inflammation, and gastrointestinal health.
Comprehensive Blood Chemistry
Provides information about inflammation, immune function, nutrient status, and overall health.
Organic Acids Testing
Provides insight into nutrient metabolism, mitochondrial function, detoxification pathways, and overall cellular health.
Nutritional Assessment
Evaluates vitamin, mineral, and micronutrient status that may influence overall wellness.
Mycotoxin Testing
May help evaluate exposure to mold-related compounds when clinically appropriate.
Environmental Health Assessment
Helps identify environmental factors that may be relevant to your health history.
Testing is recommended only when it provides meaningful information that can help guide personalized care.
Our Approach
Step 1: Stabilize
We work to reduce potential triggers and support healthy immune function through individualized recommendations.
Step 2: Identify
We investigate factors that may be contributing to ongoing symptoms using a comprehensive functional medicine evaluation.
Step 3: Restore
Treatment plans may include nutrition, gut health support, lifestyle medicine, environmental recommendations, and other personalized strategies.
Step 4: Build Resilience
Our long-term goal is to help improve resilience, support overall wellness, and provide tools for sustainable health.
Conditions Commonly Seen Alongside MCAS
MCAS may occur alongside other chronic health conditions or overlapping concerns.
These may include:
Mold-related illness
Histamine intolerance
Alpha-Gal Syndrome
Autoimmune conditions
Lyme disease
Chronic fatigue
Long COVID
Environmental sensitivities
Every individual is different, and a personalized evaluation helps determine which factors may be most relevant.
You Are Not
Imagining Your Symptoms
Many individuals living with MCAS spend years searching for answers before finding care that considers the whole picture.
Whether you've experienced food reactions, unexplained inflammation, histamine-related symptoms, or multisystem health concerns, our goal is to help you better understand your health and create a personalized path forward.
You don't have to navigate the journey alone.
In-Person & Telehealth Consultations
Root & Branch Functional Medicine serves patients in West Jefferson, Ashe County, Boone, and throughout the High Country of North Carolina.
Telehealth consultations are available for eligible patients throughout North Carolina where appropriate.
FAQ
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MCAS is a condition in which mast cells may release inflammatory mediators inappropriately, contributing to symptoms that can affect multiple body systems.
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Not necessarily. Histamine intolerance and MCAS share many symptoms, but they are different conditions. A comprehensive evaluation can help determine which factors may be contributing to your symptoms.
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Functional medicine focuses on identifying factors that may influence symptoms and developing individualized strategies to support overall health and wellbeing.
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No. Testing recommendations are personalized and based on your symptoms, health history, and clinical evaluation.
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Yes. Many patients seek care because they have persistent symptoms or suspect mast cell dysfunction but have not yet received a formal diagnosis. A personalized evaluation can help determine appropriate next steps.