Medical Overview

About Celiac Disease

A chronic autoimmune condition triggered by gluten — one of the most complex and under-diagnosed disorders in modern medicine.

Pathophysiology

How Celiac Disease Works

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The Autoimmune Mechanism
When someone with celiac disease ingests gluten, their immune system produces antibodies that attack the intestinal villi — small projections lining the small intestine responsible for nutrient absorption. This leads to villous atrophy, drastically reducing the gut's absorptive capacity and causing widespread nutritional deficiencies.
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Genetic & Environmental Causes
Celiac disease is strongly genetic, linked to HLA-DQ2 and HLA-DQ8 alleles. First-degree relatives carry a 1-in-10 lifetime risk. Environmental triggers — including infections, surgery, pregnancy, or prolonged stress — can activate the disease even in adulthood, often decades after birth.
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The Diagnosis Pathway
Diagnosis requires blood tests for tTG-IgA antibodies followed by an endoscopic biopsy confirming villous atrophy. Patients must remain on a gluten-containing diet before testing for accurate results. Genetic testing (HLA-DQ2/DQ8) can rule out the condition but cannot confirm it alone.
Clinical Symptom Profile
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Abdominal Pain
Cramping and persistent pain after gluten ingestion.
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Chronic Diarrhea
Loose stools, bloating, and excessive gas.
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Fatigue
Persistent tiredness from nutrient malabsorption.
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Brain Fog
Difficulty concentrating and mental cloudiness.
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Bone Loss
Calcium malabsorption leads to low bone density.
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Dermatitis (DH)
Blistering, itchy rash linked to gluten exposure.
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Weight Loss
Unintended loss from chronic malabsorption.
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Iron Deficiency
Anaemia from impaired iron absorption.
Clinical Management

Treatment & Ongoing Care

While no pharmaceutical cure exists, celiac disease is highly manageable. With the right approach, most patients achieve full remission.

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No Approved Pharmaceutical Treatment
As of 2026, no FDA or EMA-approved medication exists for celiac disease. Research into larazotide acetate, enzyme supplements (AN-PEP), and oral immunotherapy is ongoing. The exclusively proven treatment remains a strict, lifelong gluten-free diet.
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Strict Gluten-Free Diet

The sole evidence-based treatment. Complete elimination of gluten allows intestinal villi to regenerate. Even trace contamination can re-trigger immune damage.

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Regular Medical Monitoring

Annual review with a gastroenterologist to assess antibody levels, nutritional status, and confirm ongoing intestinal healing.

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Nutritional Supplementation

Iron, calcium, vitamin D, B12, folate, and zinc are frequently depleted. A clinical dietitian guides targeted, evidence-based supplementation.

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Dietitian-Led Nutrition

A registered dietitian specialising in coeliac disease ensures dietary completeness, safe food sourcing, and label literacy.

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Lifestyle & Wellbeing

Stress management, sleep optimisation, and regular physical activity support immune regulation and overall quality of life.

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Follow-Up Endoscopy

Repeat biopsy may be indicated to confirm mucosal healing, particularly when symptoms persist despite strict dietary compliance.