Deamidated Gliadin Antibody (IgG, IgA)
Antibodies that help detect celiac disease, especially when standard gliadin testing falls short.
Consider this test if:
- Chronic diarrhea, bloating, abdominal pain, or unexplained weight loss
- Iron deficiency, fatigue, or other findings that point toward malabsorption
- A first-degree relative has celiac disease and you want to be screened
- Known or suspected IgA deficiency, where IgA-based celiac tests can read falsely normal
- Following up a borderline or positive tTG result before considering a biopsy
- HSA/FSA eligible
- Results delivered to your dashboard · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
No fasting required. Stay on a normal gluten-containing diet before testing, since cutting out gluten lowers these antibodies and can produce a falsely normal result. If you have already started a gluten-free diet, tell your clinician, as testing may need to be reconsidered.
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What this test is for
Deamidated gliadin peptide (DGP) antibodies are immune antibodies directed at gliadin, one of the main protein fractions of gluten, after it has been chemically modified (deamidated) in a way that matches the targets seen in celiac disease. This test measures both the IgG and IgA classes, which makes it useful when investigating chronic diarrhea, bloating, weight loss, iron deficiency, fatigue, or a family history of celiac disease, and when IgA deficiency would make IgA-only testing unreliable. Older anti-gliadin assays also turned positive in people without celiac disease, so DGP assays were designed around celiac-specific epitopes and are far more accurate. It is typically interpreted alongside tissue transglutaminase (tTG) IgA, which remains the primary screening antibody for celiac disease.
This is the combined IgG and IgA version. The separate IgG-only form is used mainly when total IgA is low or deficient and the IgA result cannot be trusted.
Biomarkers tested
Includes 2 biomarkers
- Specimen
- Serum
- Method
- Immunoassay
- Measures
- Concentration
- Specimen
- Serum
- Method
- Immunoassay
- Measures
- Concentration
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Fast, dashboard-delivered results
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
Everything your health needs,
in one membership
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Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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Continuous tracking, all in one place
Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
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Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
Mito Membership
$9 /mo
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Without membership
$0
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost — covering the lab and what it takes to run the service — never a profit on the test itself; Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9/mo, and you still pay the lab’s order fee. Prices are itemized before you pay, with no hidden fees.
Where do I get tested?
Choose a partner lab (Quest, Labcorp, or BioReference) at checkout. If your cart spans multiple tests, we consolidate the whole order onto a single lab so you only make one visit.
Is this eligible for HSA/FSA?
Yes. This test is HSA/FSA eligible, and you can pay with your HSA/FSA card at checkout.
When will I get my results?
Your results post to your dashboard once your lab completes them, then a clinician reviews them and your full analysis and personalized action plan (with clear next steps) follow. Turnaround varies by test: specialty assays and at-home kits take longer, and each test shows its expected turnaround before you buy.
Do I need a doctor’s order?
No. Mito provides the lab order for you, so you can book and get tested without a separate doctor visit.
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