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Allergy & Intolerance

Gliadin IgA Test

Gliadin IgA complements anti-TTG in comprehensive coeliac disease screening. Including both markers provides a more reliable assessment of gluten-related immune activity.

Doctor's Assessment Included

Gliadin IgA: what this test measures

This test measures IgA antibodies against deamidated gliadin peptides (DGP) in your blood. Modern assays use deamidated gliadin rather than native gliadin, offering improved specificity for coeliac disease detection.

Gliadin IgA: why this value matters

Gliadin IgA complements anti-TTG testing in coeliac disease screening. It is especially valuable in children under 2 years of age and in cases where IgA-based tests need corroboration. A positive result supports further coeliac evaluation.

Gliadin IgA: when is testing worthwhile?

Consider this test as part of a coeliac disease evaluation, especially in young children or when other coeliac markers give equivocal results. You must be consuming gluten regularly before testing.

Gliadin IgA: symptoms of a high or low value

Low Levels

Low or undetectable gliadin IgA levels are considered normal and suggest that an immune response to gluten is unlikely, provided you were consuming gluten at the time of testing.

High Levels

Elevated gliadin IgA may indicate an immune response to gluten and could suggest coeliac disease. Associated symptoms include bloating, diarrhoea, fatigue, and nutrient deficiencies. Further evaluation including anti-TTG and potentially biopsy is typically recommended.

Gliadin IgA: lifestyle and this value

If coeliac disease is confirmed, strict gluten avoidance is required. If testing is pending, continue eating gluten to ensure accurate results. A dietitian can help plan a nutritionally complete gluten-free diet after diagnosis.

Gliadin IgA: frequently asked questions

What is the difference between gliadin and tissue transglutaminase antibodies?
Gliadin antibodies target the gluten protein directly, while anti-TTG targets an enzyme involved in tissue repair. Both are elevated in coeliac disease but measure different aspects of the immune response.
Why is this test especially useful in young children?
Children under 2 may not yet produce reliable levels of anti-TTG antibodies. Gliadin IgA (especially deamidated gliadin peptide) tends to appear earlier and is more sensitive in this age group.
Can I be gluten-sensitive without having coeliac disease?
Yes. Non-coeliac gluten sensitivity is a recognised condition where gluten causes symptoms without the immune damage seen in coeliac disease. However, coeliac disease should be excluded first.

Tests with related values

These panels measure values from the same category as this marker.

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Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) Leptin Zinc Selenium Iodine Copper Free T3 (Triiodothyronine) Free T4 (Thyroxine) GGT (Gamma-Glutamyl Transferase)
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Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) AMH (Anti-Müllerian Hormone) Progesterone Prolactin TPO Antibodies Free T3 (Triiodothyronine) Free T4 (Thyroxine) Leptin Vitamin B12 Folate (Folic Acid) Phosphorus
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A 48-biomarker men's health panel inspired by the WHOOP Men's Health Panel — testosterone, PSA and prostate health plus a complete metabolic and hormone base.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) PSA (Prostate-Specific Antigen) Prolactin Leptin Uric Acid Zinc
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Gliadin IgA

€49,-