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Tuna IgE allergy test for people with reactions after eating fish

Tuna Allergy Blood Test (IgE)

Tuna (f40) IgE

  • Check for tuna allergy sensitization
  • Detect fish-related reaction triggers
  • Screen symptoms after eating seafood
$49
LegitScript certified merchant
First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

What's this test for?

This test is ideal if you're experiencing itching, hives, swelling, stomach upset, or breathing trouble after eating tuna or other fish. It checks whether your immune system has formed antibodies against tuna, which is a sign of sensitization. This can help you understand if tuna might be behind your symptoms.

What happens after I get my results?

Your results will show up in your account with a clear explanation of what the normal range means for this marker. If your result is positive, a practical next step is avoiding tuna and other fish you react to and watching for symptoms with future exposure; if it's negative but symptoms continue, consider testing for other common allergens. You can download a standard lab report anytime from your account, and if you retest later, the trends feature lets you track changes over time. If you ever have severe symptoms like trouble breathing or swelling of the throat after eating fish, seek emergency medical care right away.

Who should consider this test?

Anyone who gets symptoms like hives, swelling, nausea, or breathing issues after eating tuna or other seafood should consider this test. It's also useful for people with a family history of fish or seafood allergies, or those who suspect a food sensitivity but aren't sure of the cause. Testing can help you pinpoint whether tuna specifically is a trigger.

What symptoms indicate I may need this test?
Common signs include hives or itchy skin, swelling of the lips or face, stomach cramps, nausea, vomiting, or diarrhea shortly after eating tuna. Some people also experience nasal congestion, coughing, or shortness of breath. If these symptoms consistently happen after eating tuna or other fish, this test can help confirm a connection.
How can I naturally support a healthy immune response to food sensitivities?
Eating a varied, whole-food diet and keeping your gut healthy with fiber and fermented foods can support a balanced immune system. Reducing processed foods and managing stress may also help calm overactive immune responses. That said, if you're sensitized to tuna, the most effective step is simply avoiding it rather than trying to build tolerance on your own.
When will I get my results?
Results are typically ready within about 7 days of your lab visit. Once ready, they'll be posted directly to your secure online account so you can view and download them at your convenience.
What does a positive result mean?
A positive result means your immune system has made IgE antibodies against tuna, showing you're sensitized to it. This doesn't automatically mean you'll have a full allergic reaction every time you eat tuna, but it does mean your body recognizes it as a potential threat. Many people with a positive result choose to avoid tuna and closely related fish to prevent symptoms.
What does a negative result mean?
A negative result means no significant IgE antibodies to tuna were found, so tuna sensitization is unlikely to be the cause of your symptoms. If you're still having reactions after eating fish, it may be worth looking into other allergens or food intolerances. Keeping a food and symptom diary can help narrow down other possible triggers.
How often should I retest?
There's no strict schedule for retesting, but many people check again if their diet changes, if new symptoms appear, or a year or more after their first test to see if sensitization has changed. Children in particular can sometimes outgrow food sensitivities over time. Retesting is also useful if you've been avoiding tuna and want to confirm your status before reintroducing it.
What should I do if my results are abnormal?
If you test positive, the most practical step is to avoid tuna and pay close attention to ingredient labels, since tuna can appear in sauces, salads, and prepared dishes. Keep track of any reactions in a symptom log to see patterns. If you ever experience severe symptoms like difficulty breathing or swelling, treat it as an emergency and seek immediate medical care.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
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US-licensed doctors have your back if things get unclear.
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Get lab order in minutes, results come overnight*
Results explained in simple language
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Fast & confidential, we never sell or share your data
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Demo results
Tuna (f40) IgE Antibody Negative
Demo results
Negative (Not Sensitized) Positive (Sensitized)
Negative

What this means

A negative result means no significant IgE antibodies to tuna were detected, so you're unlikely to be sensitized to tuna. If you still have symptoms after eating fish, other allergens or food intolerances could be worth exploring.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
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Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
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Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
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Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

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Tuna Allergy Blood Test (IgE)

  • Check for tuna allergy sensitization
  • Detect fish-related reaction triggers
  • Screen symptoms after eating seafood
$49
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
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For informational purposes only. Not medical advice.