🌾 Celiac Disease & Gluten Intolerance

📖 What is Celiac Disease?

Celiac disease is a serious autoimmune disorder where eating gluten triggers an immune response that damages the small intestine. Gluten is a protein found in wheat, barley, and rye.

When people with celiac disease eat gluten:

• The immune system attacks the villi (tiny finger-like projections lining the small intestine)
• Damaged villi cannot properly absorb nutrients
• This leads to malnutrition and various health complications
• Damage continues as long as gluten is consumed

Celiac disease is different from wheat allergy (which is an allergic reaction) and non-celiac gluten sensitivity (which causes symptoms but no intestinal damage).

⚖️ Celiac vs. Gluten Sensitivity vs. Wheat Allergy

🚨 Symptoms

Celiac disease presents differently in children and adults, and symptoms can vary widely.

Classic GI Symptoms

• Chronic diarrhea or constipation
• Bloating and gas
• Abdominal pain
• Nausea and vomiting
• Pale, foul-smelling stools (steatorrhea)
• Weight loss

Non-GI Symptoms (Often Predominant in Adults)

• Fatigue: Often severe and unexplained
• Iron-deficiency anemia: Not responding to iron supplements
• Bone loss: Osteoporosis or osteopenia
• Skin rash: Dermatitis herpetiformis (intensely itchy blistering rash)
• Neurological: Numbness, balance problems, headaches
• Joint pain
• Mouth ulcers
• Infertility or recurrent miscarriage
• Depression and anxiety

In Children

• Failure to thrive (poor growth)
• Delayed puberty
• Short stature
• Behavioral issues, irritability
• Dental enamel defects

🔍 Diagnosis

Accurate diagnosis requires testing WHILE you are still eating gluten. Do not start a gluten-free diet before testing.

Step 1: Blood Tests

• tTG-IgA (tissue transglutaminase antibody): Most sensitive screening test
• Total IgA level: To rule out IgA deficiency (which can cause false negatives)
• DGP-IgG (deamidated gliadin peptide): Used if IgA deficient
• EMA (endomysial antibody): Very specific, confirms positive tTG

Step 2: Endoscopy with Biopsy

The gold standard for diagnosis. Multiple biopsies from the duodenum are examined for:

• Villous atrophy (flattening of villi)
• Crypt hyperplasia (elongated crypts)
• Increased intraepithelial lymphocytes

Genetic Testing

• HLA-DQ2 and HLA-DQ8 genes are present in almost all celiac patients
• Negative genetic test essentially rules out celiac disease
• Positive test does not confirm diagnosis (30% of population has these genes)
• Useful for screening family members or if diagnosis is uncertain

🍞 The Gluten-Free Diet

A strict, lifelong gluten-free diet is the only treatment for celiac disease. The intestine begins healing once gluten is removed.

Foods to Avoid

• Wheat: Including varieties like durum, semolina, spelt, kamut, einkorn, farro
• Barley: Including malt, malt flavoring, malt vinegar
• Rye
• Triticale: A wheat-rye hybrid
• Oats: Unless certified gluten-free (due to cross-contamination)

Hidden Sources of Gluten

• Soy sauce (use tamari instead)
• Beer and malt beverages
• Many processed foods
• Salad dressings and sauces
• Some medications and supplements
• Communion wafers
• Play-dough and craft supplies

Naturally Gluten-Free Foods

• Grains: Rice, corn, quinoa, buckwheat, millet, amaranth, teff, sorghum
• Proteins: Fresh meat, fish, poultry, eggs, legumes, nuts
• Dairy: Plain milk, cheese, yogurt
• Fruits and vegetables: All fresh produce
• Fats: Butter, oils

⚠️ Preventing Cross-Contamination

Even small amounts of gluten can cause damage. Cross-contamination must be avoided.

In the Kitchen

• Separate cutting boards and utensils for gluten-free cooking
• Use separate toasters or toaster bags
• Clean surfaces thoroughly before preparing gluten-free food
• Store gluten-free foods separately (higher shelves to prevent contamination)
• Use squeeze bottles instead of shared jars (no double-dipping)
• Clean pots, pans, and utensils thoroughly

Eating Out

• Research restaurants in advance
• Call ahead to discuss your needs
• Explain that it is a medical condition, not a preference
• Ask about shared fryers, cooking surfaces
• Be cautious of sauces and marinades

Traveling

• Carry safe snacks and staples
• Learn key phrases in local languages
• Carry a translated dining card explaining celiac disease
• Research gluten-free options at your destination

🏥 Follow-up and Monitoring

After Diagnosis

• Consult with a registered dietitian experienced in celiac disease
• Screen for nutritional deficiencies (iron, B12, folate, vitamin D, zinc, calcium)
• Bone density scan if at risk for osteoporosis
• Screen first-degree relatives

Ongoing Monitoring

• Follow-up visits every 3-6 months initially, then annually
• Repeat tTG-IgA antibody after 6-12 months on gluten-free diet (should decrease)
• Consider follow-up biopsy at 1-2 years to confirm healing
• Annual assessment of symptoms and diet adherence
• Periodic screening for associated conditions

Associated Conditions to Screen For

• Type 1 diabetes
• Thyroid disease (Hashimoto's, Graves')
• Liver disease
• Microscopic colitis
• Other autoimmune conditions

⚠️ Complications of Untreated Celiac Disease

• Malnutrition: Due to poor nutrient absorption
• Osteoporosis: From calcium and vitamin D malabsorption
• Anemia: Iron, folate, or B12 deficiency
• Infertility and pregnancy complications
• Neurological problems: Peripheral neuropathy, ataxia
• Increased cancer risk: Intestinal lymphoma (rare but increased in untreated celiac)
• Refractory celiac disease: Rare condition where intestine does not heal despite strict diet

❓ Frequently Asked Questions