Coeliac disease is a chronic autoimmune condition where the body’s immune system attacks its own tissues when gluten (a protein found in wheat, barley, and rye) is consumed. This leads to inflammation and damage in the lining of the small intestine, affecting nutrient absorption.
Why Does Coeliac Disease Happen?
The exact cause of Coeliac disease is not fully understood, but several factors contribute to its development:
- Genetics: Coeliac disease tends to run in families, suggesting a genetic predisposition. However, not everyone with the relevant genes will develop the disease.
- Triggering factors: While genetics play a role, the disease is often triggered by environmental factors, such as an infection or significant stress, that cause the immune system to respond to gluten.
- Immune response: When people with Coeliac disease consume gluten, their immune system mistakenly identifies it as a threat and attacks the small intestine’s lining, damaging the villi (tiny, hair-like structures responsible for nutrient absorption).
When Does Coeliac Disease Occur?
Coeliac disease can develop at any age, although it often presents in childhood or early adulthood:
- Symptoms: Symptoms can range from mild to severe and may include diarrhoea, constipation, bloating, fatigue, weight loss, and vitamin deficiencies. In some cases, the disease may be asymptomatic.
- Age of onset: The disease can be diagnosed at any age, but it often becomes apparent between the ages of 8 and 12, or in the later years (20s and 30s).
- Testing: Diagnosis typically involves blood tests to detect antibodies and an endoscopic biopsy to confirm damage to the small intestine.
How to Treat Coeliac Disease
The primary treatment for Coeliac disease is a strict gluten-free diet:
- Eliminating gluten:
- Gluten-free diet: The most effective treatment is to completely avoid gluten-containing foods, including wheat, barley, and rye. This requires careful reading of food labels, as gluten can be hidden in many processed foods.
- Cross-contamination: It is important to avoid cross-contamination with gluten-containing foods, especially in cooking, baking, and food preparation areas.
- Nutritional support:
- Vitamin and mineral supplements: Because Coeliac disease can lead to malabsorption of nutrients, supplements such as iron, calcium, vitamin D, and folic acid may be needed.
- Dietary advice: Working with a dietitian can help individuals develop a balanced and nutritious gluten-free diet to ensure adequate intake of calories and nutrients.
- Monitoring and follow-up:
- Regular follow-up appointments: Ongoing monitoring by a healthcare provider, including repeat blood tests and, if necessary, biopsies, can check for damage to the small intestine and adherence to the diet.
- Symptom management: Treatment may include medications for symptom relief, such as antidiarrheals for persistent diarrhoea or corticosteroids for inflammation.
- Lifestyle changes:
- Support groups: Joining a support group or community can provide valuable advice, resources, and emotional support for managing the disease.
- Education: Learning about cross-contamination risks and how to shop safely for gluten-free foods can help individuals maintain a gluten-free diet.
- Long-term outlook:
- Recovery: With adherence to a gluten-free diet, the damage to the intestine can heal, and symptoms can improve within a few months to years.
- Risk of complications: Untreated Coeliac disease can lead to complications such as osteoporosis, infertility, neurological disorders, and an increased risk of certain cancers. Regular follow-up is important to monitor for these complications.
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