Despite affecting around 1 in 70 Australians, coeliac disease remains one of the most misunderstood autoimmune conditions. From assumptions that it’s simply a food intolerance to misconceptions about who should be tested, myths surrounding coeliac disease can delay diagnosis, increase health risks, and leave many people struggling with unexplained symptoms.
The reality is that coeliac disease is far more complex than a reaction to bread or pasta. It is a serious autoimmune condition that can affect multiple body systems, present with a wide range of symptoms, or none at all, and often runs in families. Yet many people remain undiagnosed for years because common misconceptions continue to cloud understanding of the condition.
In this article, we separate myth from fact and explore more about coeliac disease, including who should be tested, why first-degree relatives are at greater risk, what a gluten-free diet really involves, and why symptoms don’t always fit the textbook description. Whether you’ve recently been diagnosed, have a family history of coeliac disease, or simply want to better understand this complex condition, understanding the facts is the first step towards better health.
Myth: It’s just a food intolerance or allergy.
Fact: Coeliac disease is an autoimmune condition, not an intolerance.
A healthy small intestine is lined with fingerlike projections, called villi, that absorb nutrients. In coeliac disease, the mucosa (lining) of your small intestine is damaged. This causes inflammation and flattening of the villi, referred to as villous atrophy. This can lead to malabsorption of nutrients and increase the risk of other serious conditions.
With an intolerance or allergy, you don’t typically see this kind of gut damage. That’s why the term “gluten intolerance” isn’t interchangeable with coeliac disease.
Myth: “It’s just a new dietary fad.”
Fact: Coeliac disease is far from a modern trend.
Clinical descriptions of the condition date all the way back to the 2nd century AD.
This autoimmune disease has been recognised for centuries before “gluten‑free” became a buzzword with Samuel Gee a physician working at the Children’s Hospital on Great Ormond Street in London. He published the first modern, detailed description in in 1880’s, noting the disease affects both children and adults and suggesting diet as a potential way to manage it.
What’s changed isn’t the condition itself, but our ability to diagnose it, understand it, and support people living with it.
Coeliac disease isn’t a fad. It’s a serious, lifelong medical condition that deserves awareness, research, and proper care.
Myth: You can outgrow coeliac disease.
Fact: Coeliac disease is lifelong.
There’s no “growing out of it,” no matter when you’re diagnosed.
The immune system will always react to gluten which is why long‑term management, dietary adherence and funding coeliac disease research is essential.
Wesley Research Institute’s Coeliac Disease and Immune Health Program is working to find better answers, beyond lifelong dietary restriction alone.
This research is focused on:
- Understanding immune responses more precisely
- Improving early diagnosis
- Strengthening food safety standards
- Exploring better treatment approaches
Myth: A gluten‑free diet is all you need.
Fact: For many people, it’s not enough.
For decades, the gluten‑free diet has been the only recognised treatment. Although eliminating all sources of gluten from meals should lead to complete normalisation of the small bowel, studies suggest that bowel damage is still occurring in people trying to do this.
Even with strict avoidance, some people still face:
- Incomplete healing of the small intestine
- Risk of cross‑contamination
- Nutritional deficiencies
- Ongoing symptoms
- Social and quality‑of‑life challenges
A gluten‑free diet helps, but it isn’t a cure.
We need better diagnostics, better treatments, and a more comprehensive approach to coeliac care. This is why research matters and why the future of coeliac treatment must go beyond food alone.
Myth: Gastrointestinal symptoms are the worst of it
Fact: People can think if they don’t have symptoms, they are well. It may however be that they don’t recognize the symptoms of coeliac disease even though they are occurring. Or, they haven’t had tests to show the damage the disease is doing to parts of their body.
There are also an increasing number of patients present with non-digestive symptoms.
Symptoms beyond the gut include:
- Prolonged fatigue, weakness & lethargy
- Iron‑deficiency anemia or other nutrient deficiencies
- Unexplained weight loss
- Dental enamel defects
- Osteoporosis
- Infertility or missed periods
If left untreated, coeliac disease can lead to serious complications, including malnutrition, osteoporosis, infertility, and an increased risk of certain cancers.
Myth: You need symptoms to have coeliac disease.
Fact: You don’t need obvious symptoms to have coeliac disease.
Some people experience ‘silent’ coeliac disease, where the immune system is causing real, ongoing damage to the small intestine, even though they feel completely fine.
Yet when they go in for their endoscopy they have significant intestinal damage.Coeliac disease doesn’t always look like what people expect and that’s why testing matters.
Myth: “My family member has coeliac disease, so I automatically have it.”
Fact: Having a family member with coeliac disease doesn’t mean you automatically have it but it does mean your risk is higher.
Here’s what the research shows:
- First‑degree relatives (parents, siblings, children) have around a 10% chance of also having coeliac disease.
- Coeliac disease has a strong genetic component, which means family members can be affected even if they have no symptoms at all.
Why this matters:
Experts recommend that immediate family members be tested for coeliac disease, even if they feel completely well. Early detection helps prevent long‑term complications and supports better health outcomes.
Myth: A negative blood test means I don’t have coeliac disease.
Fact: A negative blood test doesn’t always rule out coeliac disease.
Blood tests can produce false negatives, especially if:
- You’re already limiting gluten
- You have IgA deficiency
That’s why the gold‑standard for diagnosis is still an endoscopy with biopsy, which allows doctors to check for actual damage to the small intestine.
Myth: Coeliac disease is unrelated to other conditions.
Fact: Having multiple autoimmune diseases is quite common and coeliac disease is no exception.
People with coeliac disease have a higher risk of developing other autoimmune conditions, including:
- Thyroid disorders (Hashimoto’s, Graves’)
- Type 1 diabetes
- Rheumatoid arthritis
- Autoimmune liver disease
- Dermatitis herpetiformis
…and more.
Coeliac disease has a strong genetic and immune‑system link, which means the same genes that increase coeliac risk can also increase the likelihood of other autoimmune conditions.
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