Ask the Doc: Can Improving Your Gut Health Relieve Your Allergies?

By Dr. Melissa Gallagher, Naturopathic Physician

Reading Time: 4 minutes

This article discusses emerging/ongoing science and research. It is intended for general informational purposes only. This content is unrelated to products offered by Organixx and does not contain any representations about the performance of such products.


Video Transcript:

Today, I want to follow up on allergies and how to combat seasonal allergies in your body. And really, I want to take a deeper dive into the root cause of allergies, seasonal allergies, environmental allergies, and even food allergies all fall into this category.

So, specifically, allergies are caused by a histamine reaction in your body. And histamine is a neurotransmitter. So, this is an interesting process where your brain plays a specific role in the articulation of histamines. And ultimately, histamine is an underlying component in your body’s inflammatory response. You have your immune response and then your inflammatory response that can yield puffiness in the sinuses, puffy eyes, gunk and mucus production in the eyes and nose, coughing, and even in some cases, hives and allergic skin reactions.

Relationship Between Gut Health and Histamine Reactions

Now, if we go deeper into the source of histamine-related responses and the neurotransmitter control of histamine, we need to look at your gut health. So, essentially, there is connection between your body’s allergy response mechanism and the state of your digestive health – your gut health – because your gut health controls a large majority of your neurotransmitters and the signaling and communication pathways from your gut to your brain. I cover this more in-depth in my Gut Health Masterclass, which I’d invite you if you’re looking at going really deep into the inner workings of your gut and the connection to the brain and other body systems, I’d recommend taking that.

But specifically, when we’re looking at gut-related imbalances, we have to look at gut microbes, the actual mechanics of your microbiome. Microbiome, essentially, is a fancy term for the assorted bacteria that is housed in your digestive process. We also have bacteria on our skin and we have bacteria in our oral cavity. Every mucosal membrane has bacteria. And in fact, when we look at our DNA, we’re primarily like 99.9% bacterial DNA and 0.1% human DNA. It sounds shocking, but that’s the way it works, where we are interfacing and have this collaborative effort and relationship that’s symbiotic with bacteria.

Now, when the gut is involved in terms of histamine reactions and allergies, we are needing to address an inflamed and imbalanced gut process, as well as imbalances within your gut microbiome, meaning an imbalance and dysregulation or dysbiosis of your gut microbiome. And so things you do to address the histamine response that’s causing allergies is to make sure you do not neglect healing your digestive process. So, for instance, if you have leaky gut, that can be a big source of allergies, it can be a big source of the histamine reaction in your body.

I happen to work with particular patients that have histamine reactivity, and this falls in the category of POTS and mast cell dysregulation, where the histamine reactivity of the body, the source is coming from a dysbiotic gut, a dysregulated digestive process that ends up becoming systemic in the inflammatory response and the histamine response. This is really common when folks experience hives for seemingly no reason.

So, your allergic response to dust or pollen or grass or mold spores or any type of food that’s causing you to have that histamine reaction, we need to address your digestive process for that deeper healing.

Balance Your Gut Microbiome with Probiotics

So, I’ve talked earlier about some of the topical and more everyday things to calm the symptoms of allergies. But if you want to address the root cause of allergies, you want to address healing your digestive process. And here at Organixx, we have two amazing resources. I am a huge fan of the bacteria type called L. plantarum. This is very powerful and it’s in the ProBiotixx. This is a really good microbiome balancer. There’s a lot of research in this particular strain in helping lower some of the inflammatory response mechanisms and that histamine response that a lot of individuals have. I find a lot of patients find success in taking that particular bacterial strain in a probiotic form.

Restore & Rebuild the Gut with Collagen

And then also for helping heal leaky gut, collagen is extremely powerful as is colostrum therapy. But specifically, collagen can help restore and rebuild the junctures of the small intestines that are loose or leaky that are causing food particles and allergen sources that are triggering histamine in your body, i.e., an allergy-response mechanism. We can heal those junctures by adding collagen into the body.

And I’m very excited because the Clean Sourced Collagens is a very wonderful blend of five different types of collagens. So it’s synergistic in its potency and capacity to help heal leaky gut and tighten up those junctures because what does collagen do? It creates a vertical and horizontal structure to skin and our mucosal membrane and our single-cell lining that’s our small intestine that’s so fragile and so influenced by mucosal imbalances, bacterial imbalances, and internal response mechanism to a virus or to a pathogen or a parasite, collagen can help rebuild that.

So, I hope these two tips help you to take a deep dive into healing your allergies.

Organixx ProBiotixx+ formula contains a single, super-strain of Lactobacillus plantarum, designed to help alleviate constipation… eliminate gas and belly bloat… support your entire immune system… and give you total digestive protection.

Organixx ProBiotixx probiotic formula
Dr. Melissa Gallagher, Naturopathic Physician
Dr. Melissa Gallagher, Naturopathic Physician, holds a Masters in Holistic Nutrition and a Doctorate of Naturopathy. In addition to providing expert guidance to Organixx, Dr. Melissa maintains a busy private practice in Texas. Her primary focus is working with individuals addressing digestive disorders, hormone balance, detoxification therapies, and primary and secondary lymphedema cases through lymphatic decongestive treatments.


  1. Do you think an allergic reaction (wheezy coughing) with changes of temperature and smells could have this same gut basic issue?

  2. This is a very informative article. But along with adding probiotics, especially if there is dysbiosis, (which I'm sure most people have), shouldn't we be doing something to shrink the number of 'bad bacteria'? I know that we need both in a good balance for our guts (and us!) to flourish! Thanks!

    • Hello Virginia Waterstreet,

      Yes, you are absolutely correct. Probiotics actually do fight off the bad bacteria using in our gut by using the good bacteria. Therefore, taking probiotics, diet , and exercise can be beneficial to restoring your gut health.

      Have an awesome day! :)

  3. Hi there, I am very interested in your article. I had severe hives as a child just walking through grass or sitting next to a bowl of strawberries, and nearly died from eating the skin of Kiwi fruit. The hives would grow until i lost all sight. I have grown out of this but still suffer from dust, some wines, and emphatic shock in surgeries, where I now have to have 2 anthestiolgists for every surgery. I also have has cancer twice of the cervix and the onset of cancer in the bowel in 3 places recently. Im very careful to have a well balanced diet and daily have a protein healthy shake dealing with problems to the thyroid, antioxidants formula, CaQ10 for energy microcondria, and orgainxx collagen. As the protein shake is no longer available from Doctor Gundry in Australia I have now subscribed to Orgainxx multi vitamins and metabloism thryoid aid tablets in the hope to replace the health shake. I will be interested in any evaluation or comment you might have with my troublesome history.

    • Hello Jacqueline, We are very sorry to hear of the health challenges you have been facing. Sending a healing prayer your way. :) Unfortunately, we are unable to provide medical advice.

      Due to the number of entries we receive, we cannot guarantee your specific question will be selected to be answered.  However, we will be providing frequent video responses from Dr. Melissa to respond to the many inquiries and topics that are important to so many of us.  Please be on the lookout for emails that will announce when we release a new video from Dr. Melissa.  

      If you’d like to get her expert advice on your personal situation, then Dr. Melissa has kindly offered the Organixx community a discount for booking a session with her.   To get 10% off a 60-minute session with Dr. Melissa, please click here:

      Sessions with Dr. Melissa are normally $295 – your discount is already applied when you click the link above.

      Wishing you the best in health always! :)

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