Food Sensitivity Testing in Chantilly, VA
IgG-based food sensitivity panel screening for delayed reactions to common foods. $249 flat, no insurance needed. Results in 5–7 business days.
Walk-in price
Food Sensitivity Testing
- Blood sample
- Results in 5–7 business days
- Doctor’s order included
- HSA / FSA accepted
4500 Daly Drive, Suite 240, Chantilly, VA 20151
What this test screens for
Understanding the Food Sensitivitying
Food Sensitivity Testing at our Chantilly lab measures IgG antibody responses to common foods. IgG-based food sensitivity testing is different from IgE-based food allergy testing (immediate, classic allergic reactions). IgG testing is sometimes used to identify foods that may be associated with delayed, milder reactions — digestive symptoms, fatigue, headaches, skin issues.
The clinical utility of IgG-based food sensitivity testing is debated within the medical community. Major allergy and immunology organizations note that IgG antibodies to food may simply indicate exposure rather than a true sensitivity. The test is best used as one input in a broader symptom investigation, with results reviewed by a qualified healthcare provider — typically a functional-medicine, integrative-medicine, or gastroenterology clinician — rather than acted on in isolation.
At our Chantilly lab, food sensitivity testing is $249 and uses a single blood draw. Results take 5 to 7 business days. If you are investigating immediate allergic reactions (hives, swelling, anaphylaxis), the IgE allergy test is the appropriate panel, not this one.
Why people get this test
- Investigating chronic, mild symptoms (digestion, fatigue, skin, headaches) without a clear cause
- As one input alongside an elimination diet supervised by a clinician
- When working with a functional-medicine or integrative-medicine provider who uses IgG testing in their workup
- When standard food allergy testing (IgE) has been negative but symptoms persist
What to expect
From check-in to results — what your visit looks like
Most visits take under 15 minutes. Here’s the full arc, start to finish.
How to prepare
No fasting required. No medication changes needed. Eat normally before the draw — your typical eating pattern is what the test reflects. Take morning medications normally.
During your visit
A single small blood draw — typically two tubes for the full panel — completed in under 5 minutes. Most visits are 10 to 15 minutes total.
Getting your results
Results post to your secure online portal within 5 to 7 business days. The report lists each food with its IgG reactivity level (typically low, moderate, or high) and the lab’s reference range. Results should be reviewed with a qualified healthcare provider; IgG testing is best used as one input in a broader symptom workup rather than as a standalone diagnostic.
Confidential
Your results never go through your insurance carrier.
Transparent
Price you see is price you pay.
Fast
Most results in 24–72 hours through our portal.
Doctor’s order
Included as part of every visit. No referral needed.
FAQ
Food Sensitivity Testing — what people ask
Specific questions about the food sensitivity testing. For anything not covered, call 571-500-7030.
What is the difference between food allergy testing and food sensitivity testing?
Food allergy testing measures IgE antibodies behind immediate reactions (hives, swelling, anaphylaxis). Food sensitivity testing measures IgG antibodies, sometimes associated with delayed reactions. They answer different questions. If you experience immediate or severe reactions, you need IgE allergy testing, not IgG sensitivity testing.
Is IgG food sensitivity testing clinically validated?
The clinical utility of IgG food testing is debated. Major allergy and immunology organizations note that IgG antibodies may indicate exposure rather than true sensitivity. Many clinicians use IgG testing as one input alongside an elimination diet rather than as a standalone diagnostic. Discuss with a qualified provider before making major dietary changes based on results.
What should I do with my results?
Review results with a primary-care, functional-medicine, integrative-medicine, or gastroenterology provider. Major dietary changes based on IgG results alone are not recommended. A supervised elimination-and-rechallenge approach typically gives more useful information than the test alone.
You might also need
Other general health tests
Other tests our Chantilly neighbors commonly add to a visit.
TB Test (PPD / QuantiFERON)
Tuberculosis screening for school, employment and healthcare requirements. PPD skin test and QuantiFERON blood test both available.
COVID-19 RT-PCR Test
Highly accurate PCR COVID-19 swab — results in 1–2 hours.
Allergy Testing
IgE-based blood allergy testing for environmental and food allergens.
Service area
We serve these communities
From our Chantilly lab near Westfields, we serve Centreville, Fairfax, Herndon, and the wider Fairfax County area.
Book your food sensitivity testing today.
Walk in or reserve a time online. Most visits take under 15 minutes.