Cashew Nut (Anacardium occidentale) Allergy (IgE)
A common tree nut and one of the more frequent triggers of serious food-allergy reactions.
Consider this test if:
- Lip tingling, hives, swelling, or breathing trouble after eating cashew or foods that may contain it
- A known reaction to pistachio, since the two cross-react frequently
- Confirming a suspected tree-nut allergy before broadening or restricting your diet
- Clarifying which nuts to carry an epinephrine plan for
- 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, and timing does not affect the result. Antihistamines do not interfere with blood IgE testing, so you do not need to stop them beforehand.
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What this test is for
Cashews are a tree nut found in snacks, baked goods, sauces, and dairy alternatives, and they are a recognized cause of food-allergy reactions ranging from itching and hives to swelling and anaphylaxis. This test measures IgE antibodies to cashew, the antibody class that drives immediate allergic reactions. A positive result means sensitization, not a confirmed allergy: a true allergy requires symptoms that track with exposure, so the result is read against your reaction history. If you need to pin down which cashew protein is driving the reaction, the separate Ana o 3 component test measures IgE to the specific storage protein most linked to systemic reactions, while the cashew IgG test reflects exposure rather than allergy.
Biomarkers tested
Includes 2 biomarkers
- Specimen
- Serum
- Measures
- Concentration
This test measures IgE antibodies specific to cashew, the immune proteins your body builds after identifying cashew as a threat rather than food. On re-exposure, these antibodies trigger mast cells to release histamine, driving reactions that range from hives and itching to lip or throat swelling and, in severe cases, anaphylaxis. It's useful for confirming a suspected cashew allergy after a reaction, or for investigating unexplained hives, swelling, or gut symptoms tied to tree nut exposure, since cashew often cross-reacts with pistachio allergy.
- Specimen
- Serum
- Method
- Allergen-specific IgE
- Measures
- Presence / threshold
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.
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Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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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.
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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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