Is Your Gut Lining Part of the Problem?
The Mucosal Barrier Assessment does not just confirm if intestinal permeability exists. It explains why. This simple dried blood spot test measures the specific markers that reveal what is happening with your gut barrier.
What Is the Mucosal Barrier Assessment?
The Mucosal Barrier Assessment is a dried blood spot test that measures key markers related to your gut lining's integrity and immune response. It goes beyond a simple 'yes or no' for leaky gut by showing the specific mechanisms that are driving your gut barrier issues.
Your gut lining is a single-cell-thick barrier that controls what gets into your bloodstream and what stays out. When this barrier is compromised (often called intestinal permeability or leaky gut), undigested food particles, bacteria, and toxins can slip through and trigger immune reactions throughout your body.
This test is especially helpful if you have food sensitivities that keep expanding, unexplained inflammation, skin issues, or symptoms that seem to come from nowhere. Understanding your gut barrier function is often a missing piece in the wellness puzzle.
What This Test Measures
Zonulin
Zonulin is the protein that controls the tight junctions in your gut lining. High zonulin means those junctions are opening too much, allowing particles to leak through into your bloodstream.
Histamine
Elevated histamine shows that your gut immune system is in a heightened state. This can trigger reactions to foods, environmental factors, and cause symptoms like headaches, flushing, and digestive distress.
Diamine Oxidase (DAO)
DAO is the enzyme that breaks down histamine. When DAO is low, histamine builds up and causes inflammation, rashes, headaches, and chronic gut symptoms.
Histamine:DAO Ratio
This ratio tells us whether your body can effectively manage histamine. An imbalanced ratio explains why you react to foods that should be safe.
Signs This Test Might Be Your Next Step
You do not need to check every box. If even a few of these sound like you, this test could provide the clarity you have been looking for.
How It Works: 3 Simple Steps
Book Your Call
We discuss your symptoms to determine if the mucosal barrier assessment is right for you. This test is often paired with GI-MAP or MRT testing for a more complete picture.
Collect Your Sample
This is a simple dried blood spot test you complete at home. A quick finger prick, a few drops on the collection card, and you mail it to the lab.
Get Your Personalized Plan
We review your markers together and create a targeted plan to support your gut barrier integrity, manage histamine, and reduce your overall inflammatory load.
Meet Jennifer Snell
Jennifer Snell
I help women in perimenopause and menopause get real answers about what is going on inside their bodies. Through functional lab testing and personalized wellness plans, I guide my clients toward practical next steps they can actually follow. No guesswork. No cookie-cutter protocols. Just clear data and a real plan.
I work with women just like you who feel exhausted, frustrated, and dismissed by conventional testing. My approach uses functional labs to identify patterns that standard blood work misses, so you can finally move forward with confidence.
Frequently Asked Questions
Leaky gut (intestinal permeability) means the tight junctions in your gut lining are opening more than they should, allowing particles to enter your bloodstream. This triggers immune reactions that can cause symptoms throughout your entire body, not just in your gut.
The MRT food sensitivity test tells you which foods trigger inflammation. The mucosal barrier assessment tells you why your gut is reacting in the first place. They answer different questions and are often used together for a complete picture.
Not at all. The kit includes a lancet and clear instructions. Most women find it simple and quick. You collect a few drops of blood on the provided card and mail it using the prepaid envelope.
Yes. Once we understand the specific markers driving your gut barrier issues, we can create a targeted plan using nutrition, targeted supplements, and lifestyle strategies to support gut lining repair. Many women see improvement within weeks.
Histamine intolerance is one of the most common consequences of a compromised gut barrier. When your DAO enzyme is low, histamine builds up and causes a wide range of symptoms. Knowing your levels helps us create the right support plan.
In many cases, yes. The GI-MAP tells us what is living in your gut (bacteria, pathogens, etc.) while the mucosal barrier assessment tells us how your gut lining is holding up. Together, they give a comprehensive view of your gut health.
Ready to Get Answers?
Take the first step toward understanding what is really going on inside your body. You do not have to keep guessing.
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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.