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IgE Antibody Profile to Common Food Allergens (Screening)

Published: August 9, 2026Updated: August 16, 2026

This test measures levels of Immunoglobulin E (IgE) antibodies in your blood to common foods. IgE is a type of antibody that may indicate an allergic reaction to certain triggers.

Quick summary

["Assesses potential food allergies by detecting IgE antibodies in your blood."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
15250-4
Short code
Food Allerg Mix20 IgE Ql
Synonyms
Food Allerg Mix20 IgE Ql
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
multidisk
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

IgE antibodies are part of your immune system’s response to allergens. When your body encounters a food it’s sensitive to, it may produce IgE antibodies as a marker. This test checks for the presence of these antibodies against a mix of common food allergens, helping identify possible triggers for allergic reactions.

Why You Might Need This Test

Your healthcare provider may recommend this test if you have symptoms like hives, swelling, itching, digestive issues, or difficulty breathing after eating certain foods. It’s also used to screen for allergies before foods are introduced into a child’s diet (e.g., during allergy testing or dietary changes).

How the Test Works

A small blood sample is taken to measure IgE levels specific to foods like dairy, eggs, peanuts, tree nuts, fish, shellfish, wheat, and soy. The test uses immunoassay methods to detect these antibodies, which can help determine if your immune system is reacting to these foods.

What the Results Mean

Results show whether you have elevated IgE levels to any of the tested foods. Elevated levels suggest a possible allergic reaction, but they don’t confirm a diagnosis alone. Your doctor will interpret results alongside your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

IgE food allergy screening is useful for identifying potential allergens before exposure, especially in children or individuals with suspected allergies. It can guide dietary adjustments, allergy testing, or management plans. However, false positives can occur, so results should always be reviewed by a healthcare provider.

Short name

IgE Food Allergy Screen

Frequently asked questions

What does a positive result mean?
A positive result indicates that your blood contains IgE antibodies to one or more of the tested foods. This may suggest an allergic reaction risk, but it doesn’t confirm the allergy without further evaluation. Your doctor will discuss next steps, such as allergy testing or dietary changes.
Can this test replace allergy testing?
No, this screening test is not a definitive diagnosis. It helps identify potential allergens but isn’t as precise as allergy testing (e.g., skin prick tests or oral food challenges). Your doctor may recommend additional testing if results are concerning.
How soon will I get my results?
Results are typically available within 1–3 business days, depending on your lab. Your healthcare provider will contact you to discuss the findings.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy