Test library
Mackerel Specific IgE Test
The Mackerel Allergy Test measures IgE antibodies to mackerel proteins in a blood sample. It helps evaluate fish allergy, which is distinct from shellfish allergy and from reactions to spoiled fish.
Order Mackerel Allergy Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Mackerel Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The Mackerel Allergy Test is a blood test that looks for IgE antibodies against mackerel proteins. Fish allergy is one of the more common food allergies in some regions, and it is separate from shellfish allergy. It is also different from scombroid reaction, a form of food poisoning tied to histamine in improperly stored fish, which can mimic allergy. The test helps show whether mackerel specifically triggers an immune response.
What this test measures
Immediate food allergy involves IgE antibodies that recognize specific proteins in a food. In fish, the major allergen is parvalbumin, a muscle protein found across many fish species. Because parvalbumin is similar between species, a person allergic to one fish may react to others. The laboratory measures mackerel-specific IgE to assess sensitization.
A single blood draw is used, and results are reported as a quantitative concentration with a graded class. Cooking does not reliably remove fish allergens, and reactions can occur from both raw and cooked fish. Scombroid reaction is not an allergy; it results from histamine buildup in fish that was not kept cold enough, and it can produce flushing, headache, and hives shortly after eating.
People with reactions after eating mackerel or other fish may order this test to clarify the trigger. It can also be part of a broader seafood allergy panel. A qualified healthcare provider interprets the result with the reaction history, and anyone with severe symptoms such as breathing difficulty should seek emergency care.
- Mackerel-specific IgE antibodies
- Parvalbumin fish allergen when reported
- Quantitative sIgE concentration reported in kilounits per liter
- Graded allergen-specific IgE class
- Total serum IgE when included
- Other fish IgEs when a seafood panel is included
Why people order this test
- Clarify whether mackerel is part of a suspected fish allergy
- Follow up after a reaction to mackerel or another fish
- Check for cross-reactivity among fish species
- Add mackerel to a broader seafood allergy assessment
- Support avoidance planning with a clinician
How to prepare
No fasting is required for this blood test. Follow the collection instructions provided by the laboratory, and tell the testing provider about any medications you take, because some can affect allergy test interpretation.
Understanding your results
Results are typically available within one to three business days. A detectable mackerel-specific IgE level indicates sensitization, which may or may not cause noticeable symptoms. A qualified healthcare provider can explain how the result fits with the person's history.
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Frequently Asked Questions
What does the mackerel allergy test measure?
It measures IgE antibodies to mackerel proteins in a blood sample. The result shows whether the immune system has been sensitized to mackerel.
Is fish allergy the same as shellfish allergy?
No. Fish and shellfish are different food groups with different allergens. A person can be allergic to one, both, or neither.
Can I react to other fish if I am allergic to mackerel?
Cross-reactivity between fish species is possible because many share the parvalbumin protein. A qualified healthcare provider can assess whether other fish need to be avoided.
What is scombroid reaction?
It is a form of food poisoning caused by histamine buildup in fish that was not properly refrigerated. Symptoms can resemble allergy, but the mechanism is different.
Does cooking mackerel make it safe for someone with allergy?
Cooking does not reliably remove fish allergens. Whether a person can tolerate cooked fish should be discussed with a qualified healthcare provider.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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