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My Autistic Child's Gut: Healing Starts in the Mouth.

03 June 2023

Last Updated

Author: Warren Gouin

How to start healing the gut.
Nurturing gut health is an essential component to healing autism. As parents, we must take the step towards improving our children's microbiome and increasing their chances of success. But reducing overgrown bacteria and creating an environment that promotes good microbes are not easily understood processes.
Gut health and autism are important to be looked at together.  There's enough evidence showing the benefits, that even the more sceptical parents and professionals are taking it more seriously.
This blog post breaks down these steps for you into easy-to-follow strategies as part of a comprehensive approach to treating autism so that you can confidently and effectively care for your child's gut. Starting from the mouth, we will explore every aspect needed to reduce overgrown bacteria, rebuild wanted microbes with added diversity, and create a positive environment for beneficial bacteria to thrive in.


General Gut Healing Guidelines

To properly heal the gut and promote a healthy microbiome, here is my general approach:
  • Reduce overgrown bacteria
  • Create an environment to promote the good guys
  • Rebuild the wanted microbes and create diversity


These steps are the basis for the remaining post in this gut health series. The remaining blog articles will lay out some strategies to reduce the overgrown bacteria that you and your child already have. I’ll then cover how to create the right environment that will allow the good guys to thrive, before ending with tips to rebuild the wanted microbes and add diversity. Before going deeper into tips to reduce the overgrown bacteria, I’ll cover the mouth and stomach. Looking after the mouth is key to improving gut health, but is very often overlooked.

First Steps To Healing The Gut


It’s important to remember that the mouth gets first access to the food consumed. Bacteria from the mouth can pass further down into the digestive system via the food we consume. We could spend a lot of effort balancing the colon, as described later, but if the mouth is ignored, there can be a constant supply of unwanted microbes continuing down the digestive tract with every mouth full of food.
It can be as if we’re taking a capsule of unwanted probiotics per day, just by eating. Looking after the mouth can help this situation.  To read more about probiotics, we also have a post about  probiotics for autism.
In the case of Paediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections (PANDAS), which results in OCD behaviour and other symptoms that affect learning, mouth health is very important. The Strep bacteria that is at the root of this disorder, can flourish in the mouth. You can be implementing a treatment for PANDAS that never results in complete long-term success. This may be as a result of never removing enough strep from the mouth. The bacteria can be difficult to remove from the mouth, due to the biofilm which protects them. Looking after the mouth is an important early step in improving gut health. Normal mouth hygiene is important, with regular careful brushing.
Using a quality mouthwash with xylitol and/or essential oils may be beneficial. Also, consider rinsing with colloidal silver. Other ingredients that I like to use in a warm mouthwash or throat gargle are 3 drops of iodine and a few pellets of Lauricidin. Also, the obvious one is to starve the strep, and the best way to starve strep is to remove sugar from the diet. Stop having sweet drinks and sugary foods. To reduce biofilms, an enzyme supplement such as Kirkman Labs, Biofilm Defense may help. You can also try Lauricidin, colloidal silver and iodine to reduce unwanted bacteria and biofilms. Other antimicrobials that may help reduce biofilms include:
  • berberine
  • citrus seed extract
  • black walnut hulls
  • Artemisia herb
  • echinacea
  • goldenseal
  • gentian
  • fumitory
  • galbanum oil
  • oregano oil


Mouthwash Recipe

  • 60ml boiling water
  • 6 pellets of lauricidin
  • 1/4 tsp Xylitol
  • 1 drop each of oregano essential oil.
  • 2 drops of each oftea tree, frankincense, clove.
  • 3 Drops of iodine solution equivalent to 150 mcg of iodine.


Mix with a handheld mixer or milk frother such as the Aerolatte. Wait until cooled enough to gargle, but as hot as can be tolerated safely.


Many people have long-term issues with reflux or heartburn. The standard approach is to self treat using some an anti-acid treatment. This is often done without help from a doctor to find out the actual cause of the symptoms. Because the symptom is an acidic feeling up around the chest, as the acid rises, people assume it’s a problem of too much acid. The stomach is meant to be acidic, but the acid should stay in the stomach and not travel up the oesophagus.
So the question shouldn’t be, ‘how do I reduce the acid?’, it should be ‘how do I stop the acid from travelling up the oesophagus?’Food is meant to be treated with acid in the stomach quickly, so it can then liquify and proceed into the small intestine. The bacteria in the stomach, predominately H-Pylori, shouldn’t get much of an opportunity to ferment the food before it moves onto the small intestine. There shouldn’t be much bacteria in the stomach at all. To stop food fermenting in the stomach and creating pressure, reduce bacteria in the stomach and don’t overeat.
When there is too much H-Pylori in the stomach, two things can happen:
  • The food ferments. The pressure resulting from fermentation may overcome the lower esophageal sphincter, allowing acid to rise. Foods that take too long to digest in the stomach also contribute to further fermentation. Experts report that food being in the stomach too long may also weaken the sphincter.
  • H-Pylori can reduce stomach acid leading to slower stomach digestion. Slower stomach digestion allows more time for fermentation and more pressure. Lowering stomach acid also promotes H-Pylori to thrive. This combination contributes to further increases in stomach fermentation and weakening of the lower esophageal sphincter. Low stomach acid can also cause other digestion issues, and lack of ability to absorb nutrients efficiently.


It may be essential to see your doctor about reducing stomach bacteria if you have symptoms of reflux. I urge you to ask the doctor for further testing before accepting an anti-acid treatment. Anti-Microbials, as mentioned later in this series, may also be worth considering.Hopefully you see the value of exploring the world of autism and gut health.  This first steps are important and often overlooked.  Often we ignore the importance of the mouth in gut health.  Please explore my other posts that look at other aspects of gut health.  Possibly to next place to go is to make sure you  don't waste money on probiotics.

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No products listed on this website are a treatment for autism.  I do not claim any products listed treat or diagnose any medical condition.  

Products listed are hand-picked due to their evidence of supporting health and wellbeing cost-effectively, as well as positive experiences experienced by my family and/or reported by other parents.

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