The Autism-Gut Link: Can bad bowels really cause autism?;

“A good reliable set of bowels is worth more to a man than any quantity of brains claimed 19th Century humorist Henry Wheeler Shaw, and it seems he might not have been as far off as first thought. Several years ago I posted on an Irritable Bowel Syndrome forum about the possible link between an area in the brain known as the gut axis and bowel problems; I called the article “Is it really all in your head after all?” Predictably I started receiving hate mail on the forum and made a swift exit. Six years later I believe that if I wrote the same article, perhaps with a more sensitive title, the idea wouldn’t seem so far fetched.

24% of children with Autism experience persistent gastrointestinal tract problems (Malley and Maning-Courtney, 2003), I am one of them. In fact it was my bowel problems which directed me towards my Asperger diagnosis. It was only when I dropped out of secondary school with vague bowel problems that led me to the doctors and mental health services who finally found the ‘cause’ of all my issues to be Aspergers. However, although the link seems so obvious, it is not one that has been recognised by the professionals. Mine still refuse to acknowledge a link between the two; my GP dismisses it quicker than she can prescribe me a new anti-spasmodic, which is usually already written before I’ve even had a chance to sit down. It is obvious to me that for whatever reason my bowels are affected by my Aspergers. My anxiety goes straight to my guts like an electric stun gun, whilst even the mildest meltdown sends my stomach spinning. The brain and gut are closely connected through the nervous system, and as Autism Spectrum Disorders seem to be caused by the incorrect functioning of parts of the brain, the idea that the two could be linked is a feasible one at the very least.

One theory on why Autism could cause gastro issues is that the symptoms of the disorder are to blame. Many children on the spectrum will experience anger and distress at passing stools, and often hold back their bowel movements or hide whilst doing them. The reason behind this is most likely to be due to the child not being able to understand or be in control of the process. Freud would have called such children anally retentive, and such individuals would have predictably gone on to experience repetitive behaviour problems in later life, such as OCD.

Repetitive behaviours are a common trait for those on the spectrum, and those behaviours in themselves may make the individual more vulnerable to stomach problems. For instance, many children with Autism will display real obsessions with certain types of food and repulsion for others, which may make their diet unbalanced. When I was a child I was the world’s fussiest eater, between the ages of 2 and 5 I would strictly only consume cucumber, ham and marmite toast, and only if they were prepared in a particular way. The word spoilt brat may spring to mind, but honestly my mum tried everything before she eventually gave in, and besides, my chosen diet wasn’t exactly unhealthy. However, as I grew older junk food became a regular fix; Pizza, cheesy chips and Fanta were the most popular items on my strictly limited diet, occasionally interrupted by frankfurter sausages or sausage rolls, with chips of course (yes I was a fairly fat kid).  It was during this period that my gut problems began. More specifically it was after I had entered a Fanta competition to win a mobile phone, which resulted in me consuming several cans and a bottle a day of the purple and orange poison (yes I did actually win one, so it wasn’t all in vain). I still have some weird food quirks, like not eating anything moist, but overall my diet is now much better as my gastrointestinal tract is hypersensitive to anything I eat with even the smallest amount of sugar or fat in.

For those who don’t feel the need to find any reason available to blame their parents, there is some evidence that unusual immune cell patterns or destructive microscopic features in bowel tissue are present in some autistic patients. This would make the bowels of such individuals’ digestive tracts much more sensitive.

What I had never considered, however, was that gastrointestinal problems could have caused my Autism.  This idea was first put forward by Dr Wakefield, who was also behind the research which suggested the MMR jab might cause Autism. The Leaky Gut Theory proposed that those with autism have quite permeable intestinal tracts, caused by viral infections. This results in certain proteins not being properly broken down, leading to a build of certain substances and toxins, which then in turn causes high pain tolerance, repetitive behaviours and a lack of concentration. This would explain why certain diets can cure some of the troublesome consequences of having an Autism Spectrum Disorder. However, and it’s a big however, although these toxins appear to cause symptoms similar to those seen in individuals on the spectrum, Autism isn’t just a load of symptoms which can be cured, it is an entirely different way of thinking and understanding. It is not the same as having Obsessive Compulsive Disorder; the two just share similarities in their outward appearance. How can toxins change brain pathways so dramatically as to cause Autism? Particularly as Autism is a disorder people are born with, not one that can be acquired. Needless to say it will take a lot more research to convince me my bad bowels are the cause of my problems!

My search to determine the link between the gut and autism thus continues. I found no information in any of my books and very few in scholarly journals, however, when I searched for information on Google, hundreds of pages appeared on the subject. It seems to be one of those links which everyone knows exists, but no research has attempted to back up. This isn’t just a problem for stomach issues and Autism, there are many other comorbid conditions that are so obviously linked to autism, but haven’t been thoroughly researched. The problem lies in the diagnostic manuals and criteria set out for diagnosing autism. Certain conditions can’t be diagnosed together, and certain conditions seem to encompass every possible symptom to the point of ignoring a separate condition altogether. For example, you cannot be diagnosed with an Autism Spectrum Disorder as well as ADHD or Pica, symptoms from these two disorders are included in the Autism diagnosis. The assumption that they are part of the Autism is a dangerous one, a person with Autism is as likely as the rest of the population to have ADHD as a separate condition, and if the Autism was taken away they may still have the ADHD. This leads to symptoms being ignored, which could be treated and managed much better.




Extra Information:

Filed Under
Aspergers - Autism - Autism Diagnosis - IBS
Tagged As

  • Social Links:

Related Posts
  1. Great article! and very well illustrated too.

    I do have a comment to the poll format. First, it is only possible to select one option although several may co-occur. Second, the post is likely to attract relatively most readers with bowel problems + autism because people tend to read about topics that are relevant to them, so the proportion of persons with bowel problems in the poll result is with almost 100% guarantee very biased (it could be up to 100% of the readers that have bowel problems!), and therefore meaningless to measure. But I figure the poll is maybe not really there to collect reliable data, but more as an entertaining way for readers to interact with the post.

  2. Hi

    I have a son who is 7 on the spectrum high functioning with language/ behavior/ noise sensitivity/emotional areas.

    I have often wondered if I am on the spectrum. I am highly sensitive and highly emotional. I feel the need to control my enviroment to feel secure and loose it when things change plans. One of my pet hates is ppl not doibg what they said they would. I often wnd in tears.

    I have depression and anxiety and find focussing hard but I like mg job printing medical labels which is repetitive.

    I am studying a bachelor of business and have to work in groups online which I find exteemly hard. I am good at finding the most efficient way to run a production line and work better incharge rather than along side of people.

    I find people in general stupid, except for those with high iq’s, who sometimes I fibd annoying as they think they are bettwr than everyone else.

    As a child I would have melt downs, I have struggled to gocus on my school work my whole life but when I apply myself I do well.

    I also have bowel problems and an celiac. I wonder if any of this contributed to my son’s development of his condition? Eapecially the depression.

    If you have any ideas please let me lnow. Thanks.


  3. I am an adult autistic. It isn’t a “disorder” any more than being gay is. Maybe you just need a bit more pride and a bit less shame. Self hatred is a sickness – unlike autism.

    • I am also gay. But being gay doesn’t cause me huge amounts of anxiety and depression, nor does it affect my ability to interact with those around me. There is huge debate between disorder or difference for asd, and I think it very much depends on how much you struggle with the differences it brings about, or how severely it interrupts normal functioning. If it’s affecting your guts, then disorder is probably the right term to use. I do not feel any shame over my condition, but I don’t understand having pride over something you have no choice over. I am not proud to be gay, I just am, I’m not proud to be English, I just am, and likewise I’m not proud to be Autistic, I just am. I’m very proud about my other life choices though.

  4. What do you think of this list?
    Social anxiety; getting very anxious prior to social events and practising what one should say and do and wheat, Fussy eater; not liking food to mix together and only drinking orange juice from certain supermarkets, hating onions because they remind one of eating earwigs and countless problems with food, very quick temper; miss reading people and needing constant approval. obsessive film buff and needing to know every film producer, asking for reassurance with grammar before tweeting anything, hypochondriac, hates being hugged, although needed hugs a lot as a child, ocd, but living in a mess. A 20 year old girl, but never had a diagnosis.
    Does that sound like autism?

  5. What I had never considered, however, was that gastrointestinal problems could have caused my Autism. This idea was first put forward by Dr Wakefield, who was also behind the research which suggested the MMR jab might cause Autism.

    ^ HA is that the same hack who was discredited because nothing he said was scientifically sound, made up hogwash? Yet people STILL believe the tripe he said about vaccines “causing” autism.

    IBS doesn’t “cause” autism. It’s a neurotype, not a disorder or something in need of fixing. I’ve had it up to here having to read these misinformed bullshit articles on autism, and what makes it worse is that an actually autistic person believes half this guff.

    And I’d disagree with the above comments about not being proud of something that you are – if that thing that you are is something people yell as a slur “omg he/she is so autistic” – if the thing that you are is something parents wish to forcibly beat out of their kids, and make them act neurotypical – if that thing that you are is something everybody calls a death sentence, or ruins the lives of your poor parents – saying you’re proud to be what you are is an act of rebellion against all that shit.

    I’m proud to be autistic. Because everyone wants me to hate myself because my life must be soooo haaaard.

    Fuck off.

    • Did you actually read the article? I’m clearly against the research on it, I even mentioned he was the guy that came up with MMR jab theory…

Leave a Reply