Antigliadin IgG (native)

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IBD Expanded Panel (Inflammatory Bowel Disease)

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Antigliadin IgG (Native): What It Means in Your Lab Results

Antigliadin IgG (native) is an antibody test that detects immune system reactivity to gliadin, a key protein found in gluten (wheat, barley, and rye). This test measures IgG antibodies, which are associated with delayed immune responses rather than the immediate reactions seen with IgE-mediated allergies.

Why Is the Antigliadin IgG Test Important?

An elevated Antigliadin IgG suggests a potential sensitivity to gluten and can indicate underlying immune activation related to gluten exposure. It is often used to assess:

- Non-Celiac Gluten Sensitivity (NCGS) – Some individuals experience symptoms related to gluten even without celiac disease.
- Celiac Disease Screening – While not diagnostic on its own, an elevated result may suggest a need for further testing (e.g., tTG-IgA, EMA-IgA, and total IgA).
- Leaky Gut & Intestinal Permeability – Persistent immune responses to gluten proteins can contribute to gut inflammation and increased intestinal permeability.
- Autoimmune Conditions – Higher levels are sometimes seen in autoimmune disorders like Hashimoto’s thyroiditis, rheumatoid arthritis, and type 1 diabetes.

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What does it mean if your Antigliadin IgG (native) result is too high?

What Does It Mean If Antigliadin IgG (Native) Is Elevated?

An elevated Antigliadin IgG (native) result suggests that your immune system is reacting to gliadin, a protein found in gluten-containing grains like wheat, barley, and rye. This may indicate gluten sensitivity, celiac disease, or increased intestinal permeability ("leaky gut").

Possible Causes of Elevated Antigliadin IgG

1. Non-Celiac Gluten Sensitivity (NCGS)

Elevated Antigliadin IgG is often seen in individuals with gluten sensitivity, even if they do not have celiac disease.
Symptoms may include digestive discomfort, brain fog, fatigue, headaches, and joint pain after consuming gluten.

2. Celiac Disease (Needs Further Testing)

While Antigliadin IgG alone is NOT diagnostic for celiac disease, persistent elevation may warrant further testing, such as:
- Tissue Transglutaminase IgA (tTG-IgA)
- Endomysial Antibodies (EMA-IgA)
- Total IgA levels (to check for IgA deficiency)
If celiac disease is suspected, a small intestine biopsy may be required for confirmation.

3. Increased Intestinal Permeability ("Leaky Gut")

A high Antigliadin IgG level may suggest damage to the intestinal lining, allowing gluten proteins to interact with the immune system.
Leaky gut is linked to autoimmune conditions, food sensitivities, and chronic inflammation.

4. Autoimmune Conditions

People with Hashimoto’s thyroiditis, rheumatoid arthritis, lupus, and other autoimmune diseases may have elevated Antigliadin IgG due to cross-reactivity between gluten and the immune system.

5. Recent Gluten Exposure

If you recently ate gluten, your body may have produced higher levels of Antigliadin IgG, especially if you have gluten sensitivity or celiac disease.

Symptoms Associated with Elevated Antigliadin IgG

Digestive issues (bloating, gas, diarrhea, constipation)
Brain fog, fatigue, or headaches
Joint pain & muscle aches
Skin conditions (eczema, rashes, dermatitis herpetiformis)
Mood disturbances (anxiety, depression, irritability)
Nutrient deficiencies (if related to gut damage or malabsorption)

Next Steps if Your Antigliadin IgG Is Elevated

- Evaluate symptoms – Do you experience discomfort after eating gluten?
- Consider a gluten-free diet – Removing gluten may help reduce inflammation and symptoms.
- Follow-up testing – If celiac disease is a concern, consider tTG-IgA, EMA-IgA, and total IgA tests.
- Support gut health – If leaky gut is suspected, focus on gut-healing strategies such as probiotics, digestive enzymes, and an anti-inflammatory diet.

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Antigliadin IgG (native)

Antigliadin IgG (Native): What It Means in Your Lab Results

Why Is the Antigliadin IgG Test Important?

All Your Lab Results. One Simple Dashboard.

What does it mean if your Antigliadin IgG (native) result is too high?

What Does It Mean If Antigliadin IgG (Native) Is Elevated?

Possible Causes of Elevated Antigliadin IgG

1. Non-Celiac Gluten Sensitivity (NCGS)

2. Celiac Disease (Needs Further Testing)

3. Increased Intestinal Permeability ("Leaky Gut")

4. Autoimmune Conditions

5. Recent Gluten Exposure

Symptoms Associated with Elevated Antigliadin IgG

Next Steps if Your Antigliadin IgG Is Elevated

All Your Lab Results. One Simple Dashboard.

Import, Track, and Share Your Lab Results Easily

Import, Track, and Share Your Lab Results

Article Review & Sources

Bring All Your Lab Results Together — In One Place

Gather Your Lab History — and Finally Make Sense of It

Finally, Your Lab Results Organized and Clear

Advanced Plan

Unlimited Account

Pro Monthly

What's included in a Healthmatters membership

Import Lab Results from Any Source

See Your Health Timeline

Understand What Your Results Mean

Enter Your Lab Reports Yourself — Always Free Enter Your Lab Reports — Always Free

Visualize Your Results

Export Your Complete Lab History in a Single File Export Your Complete Lab History

Comprehensive Data Entry Service for Your Reports Data Entry Service for Your Reports

Securely Share With Anyone You Trust

Let Your Lab Results Tell the Full Story

Once your results are in one place, see the bigger picture — track trends over time, compare data side by side, export your full history, and share securely with anyone you trust.

Bring all your results together to compare, track progress, export your history, and share securely.

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We implement proven measures to keep your data safe.

All Your Lab Results.
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