Brazil Nut Allergy Test
Brazil Nut Allergy Test can be requested without a referral, and this overview covers what to expect. A Brazil nut allergy test checks your blood for antibodies that may indicate an allergy to Brazil nuts. It is usually ordered when you have had allergic symptoms after eating Brazil nuts or when your doctor needs to confirm a suspected allergy.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A Brazil nut allergy test checks your blood for antibodies that may indicate an allergy to Brazil nuts. It is usually ordered when you have had allergic symptoms after eating Brazil nuts or when your doctor needs to confirm a suspected allergy.
What it measures
- Brazil nut-specific IgE — Antibodies made by your immune system that target Brazil nut proteins.
- Total IgE — A general measure of allergic antibody levels in your blood, sometimes used for context.
- Component allergens (e.g., Ber e 1) — Specific proteins in Brazil nuts that can help show how likely a reaction is.
- Cross-reactive markers — Proteins shared with other nuts or pollens that may cause a positive test without a true allergy.
Who it is for
This test is typically ordered by an allergist, immunologist, or primary care doctor for people who have had symptoms after eating Brazil nuts or who need to check for a possible allergy.
Preparation
No fasting or special preparation is required for this blood test. You can eat and drink normally before your appointment.
Results and what they mean
Results are reported as a number that shows the level of Brazil nut-specific IgE in your blood. A higher number may suggest allergy, but only a clinician can interpret the result along with your symptoms and history. This information is not medical advice; discuss your results with a healthcare professional.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the brazil nut allergy test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to avoid Brazil nuts before the test?
No, you do not need to avoid them unless your doctor tells you otherwise. The test measures antibodies that are already in your blood.
What does a positive result mean?
A positive result means you have antibodies to Brazil nuts, but it does not always mean you are allergic. Your doctor will consider your symptoms to make a diagnosis.
Can the test tell how severe my allergy is?
No, the test cannot predict how severe a reaction would be. It only shows whether antibodies are present.
Is this test covered by insurance?
Coverage varies by insurance plan. Check with your insurance provider or the lab before testing.