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How to Cure Eczema Permanently

From the Inside, Out

Root Cause #3:

Leaky Gut


What is Leaky Gut?

Leaky gut, scientifically known as increased intestinal permeability (IP), refers to a condition where the lining of the intestines becomes more porous than normal, allowing substances such as toxins, bacteria, and undigested food particles to leak into the bloodstream. This leakage triggers an immune response and inflammation throughout the body.

In individuals with leaky gut, the tight junctions between intestinal cells become compromised, leading to gaps or holes in the intestinal barrier. As a result, harmful substances that should be confined to the digestive tract gain access to systemic circulation, where they can provoke immune reactions and contribute to various health issues.


By unraveling the scientific complexities of leaky gut , we aim to provide clarity on how leaky gut can serve as a fundamental root cause of eczema, empowering individuals with knowledge to address this issue at its core. Through understanding the science behind eczema and leaky gut, we pave the way for effective interventions and holistic approaches to managing and ultimately conquering this challenging skin condition.

The Intestinal Barrier

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The intestinal barrier is like a protective shield in your gut, made up of a layer of special cells called enterocytes. These cells are responsible for absorbing nutrients from the food you eat and also help regulate your immune system by releasing certain signals.

In addition to enterocytes, there are other helper cells in the mix. Goblet cells produce mucus, which helps to keep things moving smoothly. Enterochromatophilic cells release hormones, Paneth cells make defensive proteins, and M cells catch harmful germs from the food you eat.

But the real superheroes of the intestinal barrier are tight junctions (TJs). Think of TJs as tiny gates between the cells. They control what gets in and out of your gut. These gates are made up of various proteins that work together to keep everything in check. However, when something goes wrong with these gates, it's like leaving your front door unlocked. Substances that shouldn't be allowed to enter your bloodstream can slip through, causing trouble.

When the structure and function of these gates are compromised, it can lead to problems like inflammatory bowel disease and celiac disease, where the gut becomes more permeable than it should be.


In simple terms, the intestinal barrier and tight junctions are like the bouncers at a club—they let in the good stuff and keep out the troublemakers. Understanding how they work can help us better grasp how our gut protects us and what happens when things go awry.

Leaky Gut & Eczema

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Leaky gut, or increased intestinal permeability, has emerged as a potential contributing factor to the development and exacerbation of eczema. Several studies have investigated the relationship between leaky gut and atopic diseases, shedding light on the intricate interplay between the gastrointestinal tract and the skin.

Intestinal Barrier Permeability in Allergic Diseases

Increased intestinal permeability allows allergens to penetrate the intestinal barrier, triggering immune responses and systemic signs of food allergy. This abnormal response to food allergens underscores the significance of gut barrier integrity in allergic diseases, including eczema. (Niewiem and Grzybowska-Chlebowczyk, 2022)

Investigating Leaky Gut in Eczema

Pike et al. conducted investigations into gastrointestinal permeability in children with atopic eczema. They observed elevated urinary excretion rates of certain sugars in children with eczema compared to controls, indicating increased permeability of the gut barrier. This heightened permeability may be linked to either primary abnormalities of the gut or intestinal mucosal damage caused by hypersensitivity reactions to food antigens.

Impact of Diet on Intestinal Permeability

Caffarelli et al. examined the effects of dietary interventions on small intestinal permeability in children with atopic eczema. While dietary restriction resulted in reduced permeability in some children with improved skin conditions, the overall impact on permeability was not statistically significant. This suggests that dietary therapy may have variable effects on intestinal permeability in individuals with eczema.

Understanding the role of leaky gut in eczema opens avenues for novel therapeutic strategies. By targeting gut barrier integrity through dietary modifications or interventions aimed at restoring intestinal homeostasis, clinicians may potentially alleviate eczema symptoms and improve patient outcomes.


Identifying whether you have leaky gut, scientifically known as intestinal permeability, is crucial for addressing underlying digestive issues and promoting overall wellness. One of the most effective ways to assess leaky gut is through testing, which provides valuable insights into the health of your intestinal barrier.

Get a Comprehensive Stool Analysis

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A comprehensive stool analysis provides additional insights into gut health by assessing markers of inflammation, microbiome imbalances, and digestive function. Analysis of stool samples can reveal the presence of inflammatory markers, such as calprotectin and lactoferrin, which indicate heightened immune activity and intestinal inflammation. Additionally, evaluating the composition of the gut microbiome can uncover dysbiosis, an imbalance in the microbial community, which may contribute to leaky gut.

Additionally, a comprehensive stool analysis tests for zonulin levels. Zonulin is a protein that regulates the permeability of the intestinal epithelial barrier. Elevated levels of zonulin in the blood are associated with increased intestinal permeability, indicating potential leaky gut syndrome. By measuring zonulin levels through a stool test,we can evaluate the integrity of the intestinal barrier and identify signs of leaky gut. Higher-than-normal levels of zonulin suggest increased intestinal permeability, allowing toxins, bacteria, and undigested food particles to leak into the bloodstream. This can trigger inflammation, immune reactions, and digestive disturbances associated with leaky gut syndrome.

Get a Food Sensitivity Test

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High levels of food sensitivity on food sensitivity testing may also indicate leaky gut indirectly. When the intestinal barrier is compromised, undigested food particles and toxins can leak into the bloodstream, triggering immune responses and food sensitivities. Therefore, identifying numerous food sensitivities through testing can serve as an indirect indicator of leaky gut. By pinpointing specific foods that elicit an immune response, food sensitivity testing can help guide dietary interventions to support gut healing and reduce inflammation associated with leaky gut syndrome.


Leaky gut, or increased intestinal permeability, can be addressed through various lifestyle modifications and dietary interventions aimed at restoring gut barrier integrity and promoting overall gastrointestinal health

Avoid Food Sensitivities & Allergies

Food Knolling

Identifying and eliminating trigger foods that contribute to food sensitivities and allergies is crucial for reducing inflammation and preventing further damage to the intestinal barrier. Conducting allergy or sensitivity testing and then following an elimination diet under the guidance of our Cleanbody Team can help pinpoint specific dietary triggers and support intestinal barrier healing and alleviate symptoms of eczema.

Avoid Toxins

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Reducing exposure to environmental toxins, such as pesticides, heavy metals, and pollutants, can help mitigate inflammation and oxidative stress in the gut. Choosing organic, pesticide-free foods, using non-toxic household cleaning products, and filtering drinking water can minimize toxin exposure and support overall gut health. Get tested for toxins to understand which toxin exposures you need to clean up.

Support Intestinal Barrier Health

Promoting the integrity of the intestinal barrier is essential for preventing the translocation of harmful substances into the bloodstream. Incorporating gut-supportive nutrients and supplements, such as probiotics, prebiotics, and gut-healing compounds, can help strengthen the gut lining, enhance mucosal immunity, and promote the growth of beneficial gut bacteria.


Gut Mend is our comprehensive gastrointestinal support product specifically designed to promote intestinal barrier health and function. Gut Mend offers a synergistic blend of ingredients carefully selected to support optimal gastrointestinal integrity and function. Ingredients such as L-Glutamine, N-Acetyl-D-Glucosamine, Deglycyrrhizinated Licorice, Aloe Vera Extract, Slippery Elm Extract and more, work together to provide comprehensive support for optimum gastrointestinal health, promoting the proper permeability and integrity of the gut lining. By integrating Gut Mend into your daily regimen, you can proactively maintain gut health, enhance nutrient absorption, and fortify your body's defense against the infiltration of toxins, allergens, and harmful microbes into the bloodstream. This comprehensive approach addresses a fundamental factor contributing to eczema, promoting not only gastrointestinal wellness but also supporting healthier skin function.

Eat a balanced CleanFOOD Diet

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Transitioning to a nutrient-dense diet centered around whole foods is key to nurturing optimal gut function and microbial balance. Prioritize a rich variety of fiber, antioxidants, and vital nutrients by incorporating an array of fruits, vegetables, lean proteins, healthy fats, and whole grains into your meals. To kickstart your journey towards cleaner eating, consider enrolling in our Cleanbody For Life membership, granting you access to our exclusive CleanFOOD Nutrition Plan. Alternatively, you can opt for a personalized approach by scheduling a consultation with Dr. Fong and our team of Cleanbody nutritionists, who will collaborate with you to craft a tailored nutrition regimen that suits your unique needs and goals.

Manage Stress & Maintain a CleanMIND


Chronic stress can significantly impact intestinal permeability and upset the delicate balance of gut microbes. To counteract these effects, integrating stress-relieving practices like meditation, deep breathing exercises, yoga, or mindfulness techniques into your routine can effectively regulate the body's stress response and foster harmony within the gut-brain axis. Unlock exclusive access to our CleanMIND modules within the Cleanbody For Life membership, featuring tailored exercises and guided meditations designed to cultivate a CleanMIND. Furthermore, join our weekly support group sessions, where Dr. Fong leads a guided meditation every week to enhance your stress management journey. For personalized assistance, consider booking a dedicated CleanMIND session to receive additional support and guidance tailored to your unique needs.

Avoid Unnecessary Medications


Certain medications, notably nonsteroidal anti-inflammatory drugs (NSAIDs), proton pump inhibitors (PPIs), and antibiotics, have been shown to disturb the delicate balance of gut microbiota and increase intestinal permeability. To mitigate these effects, it's advisable to minimize the use of unnecessary medications and seek out alternative treatment options that are less likely to disrupt gut health.


Our CleanIMMUNE guide, available exclusively to members of our Cleanbody For Life membership, equips you with strategies to both prevent and manage acute illnesses effectively. Whether it's boosting your immune system or navigating through sudden health concerns, our comprehensive guide offers valuable insights and practical tips tailored to your needs. Alternatively, for personalized guidance and support, you can schedule a consultation with our team of experts today. We prioritize implementing nutrition and lifestyle adjustments and offer natural herbs and supplements as viable alternatives when medications are necessary. Together, we'll develop a customized plan to address your specific health goals and concerns.

Seek Professional Guidance


Consulting with our team can provide personalized guidance and recommendations for addressing leaky gut. We can order labs and develop an individualized treatment plan tailored to your specific needs, medical history, and dietary preferences. Regular monitoring and follow-up evaluations can help track progress and make necessary adjustments to optimize gut health and overall well-being. Attend our Live Q&A to ask Dr. Fong more questions about Leaky Gut or book a consultation to get evaluated by Dr. Fong today!


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Conquer your Skin Condition FOR GOOD

5 Year Old with Severe Eczema


Day 0

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5 Months

17 Month-Old with Eczema

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Yajaira's Journey to "Clean" Skin!

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Overcoming Eczema, Autoimmune Disease, Gut Health Imbalances & Getting off Dupixient

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Get off your Skin Disease Medications FOR GOOD

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1 Month

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2 Months

4 Months

“I’ve had eczema and skin issues all my life, since literally the day I was born…. Working with Dr. Fong and her team gave me a new outlook on medicine, on my health, on my body and on myself. This whole new side of health and medicine is something I hope for every person to experience and know. Thank you Cleanbody Team!”

-KG (Completed Cleanbody Program Feb 2023)

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Itcelia S.

Overcoming Eczema & Gut Health Imbalances

Madalyn T.

Overcoming Eczema & Getting Off Eczema Medications

Ben A.

Overcoming Eczema, Swelling, Headaches, Low-energy, Anger

Jimmy B.

Overcoming Mold to Address the Root Cause of Eczema

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Medical Disclaimer: The information provided in this guide is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.

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