Mackerel Allergy Test
Below is a plain-language overview of the mackerel allergy test. The mackerel allergy test is a blood test that checks for an immune response to proteins found in mackerel. It is usually ordered when someone has had allergic symptoms after eating mackerel or other fish, or when a doctor wants to confirm or rule out a fish allergy.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
The mackerel allergy test is a blood test that checks for an immune response to proteins found in mackerel. It is usually ordered when someone has had allergic symptoms after eating mackerel or other fish, or when a doctor wants to confirm or rule out a fish allergy.
What it measures
- Mackerel-specific IgE — Antibodies the immune system makes in response to mackerel proteins.
- Total IgE — A general measure of allergic antibody levels in the blood.
- Fish allergen components — Specific proteins, such as parvalbumin, that can help identify the trigger.
- Cross-reactive fish markers — Checks whether other fish may also cause a reaction.
Who it is for
It is typically ordered by an allergist, primary care clinician, or other healthcare professional for people who have had hives, swelling, breathing trouble, or digestive symptoms after eating mackerel.
Preparation
No fasting is required. Tell your clinician about any medicines you take, especially antihistamines, because they can affect allergy test results.
Results and what they mean
Results are reported as a number or class level for mackerel-specific IgE, along with any component or cross-reactive markers tested. A clinician interprets these results together with your symptoms and history, since a positive result alone does not always mean you have an allergy. This is general information, not medical advice; discuss your results with a qualified 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 mackerel 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
Does this test hurt?
It uses a standard blood draw, so you may feel a brief pinch when the needle goes in.
How long do results take?
Most results are ready in about 1 to 3 business days.
Can I eat mackerel before the test?
Yes. Eating mackerel before the test does not change the result, and no fasting is needed.
If my result is positive, do I need to avoid all fish?
Not necessarily. Some people react only to certain fish, so your clinician will help you decide what to avoid.