Understanding Coeliac Disease: A Complete Overview
What Exactly is Coeliac Disease?
Coeliac disease is a serious, lifelong autoimmune condition affecting approximately 1 in 100 people in the UK. When a person with coeliac disease consumes gluten — a protein found in wheat, barley, and rye — their immune system responds by attacking the lining of the small intestine.
This damages the villi, causing villous atrophy and preventing proper nutrient absorption. Coeliac disease is not a food allergy or intolerance — it is an autoimmune condition. Even tiny amounts of gluten (as little as 20 parts per million) can trigger an immune response.
The Full Spectrum of Symptoms
Coeliac disease is often called the great imitator because its symptoms can mimic dozens of other conditions. The average time to diagnosis in the UK is 13 years.
Classic GI Symptoms
- Chronic diarrhoea or constipation
- Bloating and excessive gas
- Abdominal pain
- Nausea and vomiting
- Pale, fatty, foul-smelling stools
Neurological Symptoms
- Brain fog
- Headaches and migraines
- Peripheral neuropathy
- Gluten ataxia
- Depression and anxiety
Systemic Symptoms
- Extreme fatigue
- Iron-deficiency anaemia
- Joint and bone pain
- Mouth ulcers
- Hair loss
Silent Coeliac Disease
- Some people have no obvious symptoms yet still have intestinal damage
- Regular screening is important for at-risk groups
Who is at Risk?
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Family HistoryFirst-degree relatives have a 1 in 10 risk.
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Other Autoimmune ConditionsType 1 diabetes, thyroid disease, rheumatoid arthritis.
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HLA-DQ2/DQ8 Gene CarriersPresent in 95% of people with coeliac disease.
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Down SyndromeSignificantly higher prevalence.
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IgA DeficiencyMay cause false-negative blood tests.
The Diagnosis Journey
Living Well with Coeliac Disease
Diet Management
- Strict GF diet
- Read food labels
- Understand cross-contamination
- Use Coeliac UK directory
Medical Follow-Up
- Annual blood tests
- Bone density monitoring
- Nutritional checks
- Dietitian reviews
Mental Wellbeing
- Connect with the coeliac community
- Join Coeliac UK
- Seek help if struggling