Cabbage Allergy Test
Below is a plain-language overview of the cabbage allergy test. A cabbage allergy test is a blood test that looks for antibodies your immune system may make against cabbage proteins. It is usually ordered when someone has symptoms such as itching, hives, or stomach upset after eating cabbage or related foods, and the cause is unclear.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A cabbage allergy test is a blood test that looks for antibodies your immune system may make against cabbage proteins. It is usually ordered when someone has symptoms such as itching, hives, or stomach upset after eating cabbage or related foods, and the cause is unclear.
What it measures
- Cabbage-specific IgE — Antibodies that bind to cabbage proteins; higher levels suggest sensitization.
- Total IgE — A general measure of allergic antibody levels in the blood.
- Related cruciferous allergens — Broccoli, cauliflower, or kale proteins that may cross-react.
- Cross-reactive pollen markers — Proteins from mugwort or other pollens that can resemble cabbage allergens.
Who it is for
A doctor or allergist typically orders this test when a person reports reactions after eating cabbage or similar vegetables, or when other allergy causes have been ruled out.
Preparation
No fasting is required. Tell your clinician about all medicines you take, especially antihistamines, because some can affect allergy test results.
Results and what they mean
Results are reported as a level or class for each marker, not as a simple yes or no. A clinician interprets them alongside your symptoms and history, since a positive result alone does not always mean you are allergic. This is general information, not medical advice.
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 cabbage 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 stop eating cabbage before the test?
No. The test measures antibodies already in your blood, so avoiding cabbage beforehand is not necessary unless your clinician says otherwise.
Can this test tell me if I am truly allergic?
It shows sensitization, which is not the same as a clinical allergy. Your clinician combines the result with your symptoms to decide.
How long until I get results?
Typical turnaround is 1 to 3 business days, though it can vary by lab.
Is a blood test better than a skin test?
Neither is always better. A blood test may be used when skin testing is not suitable, and your clinician will choose the best option.