Food and Tree Nut Allergy Panel with Reflex
One blood draw screens for IgE sensitization to 17 of the most common food and tree nut allergens, spanning peanut, tree nuts, milk, egg, fish, shellfish, sesame, soy, and wheat. Testing uses ImmunoCAP specific IgE, the method most allergy research relies on.
It also builds in automatic reflex to component testing. When a whole-allergen result comes back elevated, the lab runs the protein-level component tests for that allergen on the same sample, at no extra draw. That layer matters because a positive whole-allergen result on its own does not always mean a true clinical allergy. Component resolution helps separate genuine allergy from cross-reactive sensitization, giving you a clearer read on the real-world risk of a systemic reaction.
Built for
- Adults and families who want a broad first look at food and nut sensitivities from a single sample
- Anyone with unexplained reactions who wants to narrow the likely triggers before an allergist visit
- People who already react to one food and want to check related, cross-reactive allergens
- Anyone who wants component-level detail, not just a positive or negative, to understand real-world risk
What it screens for:
Tree nuts
- Almond
- Brazil Nut (reflex to components)
- Cashew Nut (reflex to components)
- Hazelnut (reflex to components)
- Macadamia Nut
- Walnut (reflex to components)
Peanut and soy
- Peanut, Total (reflex to peanut components)
- Soybean
Milk and egg
- Cow's Milk (reflex to milk components)
- Egg White (reflex to egg components)
Fish and shellfish
- Codfish
- Salmon
- Tuna
- Shrimp
- Scallop
Seeds and grains
- Sesame Seed
- Wheat
How reflex-to-component testing works
- Every allergen is first tested as a whole-allergen specific IgE.
- If that result is elevated, the lab automatically adds the protein-level component tests for that allergen, on the same blood sample.
- Component results help tell a true, higher-risk allergy apart from a cross-reactive sensitization that may never cause symptoms.
- You are billed one price whether or not any reflex components run.
Pairs well with
Food and Tree Nut Allergy Panel with Reflex
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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How it works
Purchase your tests
Purchase this test and any other tests you'd like online. A healthcare provider will review and approve your test requests; no healthcare provider visit is required.
Provide your sample
Visit a Quest location near you to provide your sample. Use the Quest locator below to find a location near you.
Get your results
Our partnered facilities will process your bloodwork. Lab Results typically arrive within 14 business days, and we will email them to you as soon as they arrive.
Lab work FAQs
Please read our FAQs page to find out more.
How quickly will my lab results arrive?
Your lab results will typically arrive within two weeks, though processing time may vary based on the size and complexity of your panel. Rest assured, once your results are ready, they will be securely delivered to your email. No waiting rooms. No chasing paperwork. Just precision diagnostics at your fingertips.
Does Marek Diagnostics accept insurance?
Marek Diagnostics is a cash-pay service. Our platform offers direct access to comprehensive testing without the limitations, denials, or delays imposed by insurance companies. If traditional insurance covered the kind of proactive, high-quality lab work we offer, Marek Diagnostics wouldn’t need to exist.
However, many clients successfully use their HSA/FSA to cover their testing costs. Marek Diagnostics is partnered with TrueMed for convenient deployment of HSA/FSA funds at checkout.
Why can’t I order labs in New York, New Jersey, or Rhode Island?
Due to state regulations, Quest services are not available to residents of NY, NJ, or RI when ordered through our platform. If your address is in one of these states, you'll be notified at checkout and won’t be able to complete your order for restricted items.
You can still purchase:
- Supplements, apparel, and other non-lab items
Not sure which items are restricted? The checkout system will alert you automatically, or you can contact our team for assistance.
My panel Meets Treatment Requirements — what does that mean?
Marek Diagnostics is an extension of Marek Health, the leading health optimization platform designed to turn your results into informed action.
If your panel Meets Treatment Requirements, you’re eligible to enroll into Guided Optimization, an exclusive program that connects you with:
- Detailed, expert led lab analysis
- A consultation with a Marek Health coach and board-certified medical provider
- A precision health optimization plan
- Access to high-quality treatment options
If you’re unsure what to do with your results, Marek Health is the bridge between lab results and achieving your goals.
Do I need to pay a separate fee at the lab to get my blood drawn?
No additional payment is required at the lab. Our expert-built panels include the venipuncture and if you’re building a custom panel or testing biomarkers individually, a $10 venipuncture fee will be automatically added at checkout.