Beetroot Beta Vulgaris (F319) IgE Biomarker Testing
It measures IgE antibodies to beetroot to support allergy evaluation and next steps, with easy ordering and Quest-based lab access via Vitals Vault.
With Vitals Vault, you have access to a comprehensive range of biomarker tests.
A Beetroot Beta vulgaris (F319) IgE test checks whether your immune system has made IgE antibodies that recognize beetroot. This is one piece of evidence used when you and your clinician are trying to sort out possible food-allergy symptoms.
Because beetroot is less common as a trigger than many other foods, testing is usually most helpful when your history points to it, such as repeat symptoms after eating beets or beet-containing juices, powders, or mixed foods.
Your result does not diagnose an allergy by itself. It helps estimate the likelihood of IgE sensitization, which your clinician can combine with your symptoms and, when needed, supervised food challenge planning.
Do I need a Beetroot Beta Vulgaris F319 IgE test?
You may want this test if you notice consistent symptoms within minutes to a couple of hours after eating beetroot or foods that contain beet (for example juices, smoothies, “red” vegetable blends, or beet powder). Symptoms that can fit an IgE-type reaction include hives, itching, lip or mouth tingling, swelling, wheezing, throat tightness, vomiting, or lightheadedness.
This test can also be useful if you have unexplained reactions after eating mixed dishes and you are trying to narrow down which ingredient is responsible. It is most informative when you can name a specific exposure and a repeatable pattern, rather than vague, long-delayed symptoms.
You may not need beetroot IgE testing if your symptoms are mainly digestive and delayed (bloating, cramps, diarrhea the next day), because those patterns are often not IgE-mediated. In those cases, your clinician may consider other causes such as intolerances, FODMAP sensitivity, or non-IgE food reactions.
If you have ever had a severe reaction, do not use a lab result to decide whether it is “safe” to re-try beetroot on your own. Testing supports clinician-directed care and risk planning, not self-diagnosis.
This is a laboratory-developed specific IgE blood test performed in a CLIA-certified lab; results should be interpreted with your clinical history and are not a standalone diagnosis.
Lab testing
Order labs to measure Beetroot (Beta vulgaris) (f319) IgE
from $19.99 at Quest Diagnostics
About 1 week
Schedule online — results typically within a week
Clear next steps
Guidance included, with follow-up care available
HSA / FSA
Eligible for pre-tax health spending accounts
Get this test with Vitals Vault
With Vitals Vault, you can order Beetroot Beta vulgaris (F319) IgE testing without waiting for a separate referral visit. You complete checkout, visit a participating lab location for a standard blood draw, and then review your results in your Vitals Vault dashboard.
If you want help making sense of the number, PocketMD can walk you through what “sensitization” means, how to compare your result with your symptoms, and what follow-up questions to bring to your clinician. That is especially helpful when you are deciding whether to test related allergens or whether a different explanation fits better.
If your result is positive and your exposure history is unclear, you can use Vitals Vault to add companion allergy tests and retest later to see whether your IgE level is changing over time, which can be relevant when you are avoiding an allergen or reassessing risk.
- Order online and complete a quick blood draw at a participating lab location
- Clear, shareable results you can bring to your clinician or allergist
- PocketMD support for next-step questions and retest planning
Key benefits of Beetroot (F319) IgE testing
- Helps assess whether your immune system is sensitized to beetroot through an IgE pathway.
- Adds objective data when symptoms after beet-containing foods are hard to separate from other ingredients.
- Supports safer planning if you have had hives, swelling, breathing symptoms, or rapid-onset vomiting after exposure.
- Can guide whether broader food or pollen-related allergy testing makes sense based on your pattern of reactions.
- Helps you and your clinician decide if avoidance, supervised reintroduction, or specialist referral is appropriate.
- Provides a baseline value that can be trended if your clinician recommends repeat testing over time.
- Pairs well with PocketMD guidance so you can interpret the result in context instead of guessing from a number.
What is Beetroot Beta Vulgaris (F319) IgE?
Beetroot Beta vulgaris (F319) IgE is a blood test that measures allergen-specific immunoglobulin E (IgE) antibodies directed at proteins found in beetroot. If your immune system has made IgE that recognizes beetroot, the lab can detect and quantify it.
A positive result means sensitization, which is not the same thing as a confirmed clinical allergy. Some people have measurable IgE but do not react when they eat the food, while others react strongly even at relatively low levels. That is why your symptom history, timing of reactions, and any co-factors (like exercise or alcohol around meals) matter.
This test is different from IgG food panels, which do not diagnose IgE-mediated allergy and are not used to predict anaphylaxis risk. It is also different from skin-prick testing, which measures skin reactivity rather than circulating IgE in blood.
If beetroot is part of a broader pattern (for example, multiple plant foods causing mouth itching), your clinician may consider cross-reactivity patterns and whether pollen allergy or oral allergy syndrome could be contributing.
What the test can and cannot tell you
The test can tell you whether beetroot-specific IgE is detectable and roughly how much is present. It cannot, by itself, predict exactly how severe a reaction would be, and it cannot confirm that beetroot is the true cause of symptoms without matching clinical history.
How clinicians use it
Clinicians use specific IgE results to support a working diagnosis, to decide whether additional testing is needed, and to help plan next steps such as avoidance, emergency preparedness, or supervised oral food challenge when appropriate.
What do my Beetroot Beta Vulgaris F319 IgE results mean?
Low or undetectable Beetroot (F319) IgE
A low or undetectable result makes IgE-mediated beetroot allergy less likely, especially if your symptoms were mild or not clearly linked to beet exposure. It does not fully rule out allergy, because timing, recent avoidance, and test sensitivity can affect results. If your reactions were immediate and convincing, your clinician may still consider additional evaluation such as skin testing, testing for other likely triggers, or supervised challenge planning.
In-range results (interpretation depends on the lab’s reporting)
For allergen-specific IgE, there is not a single “optimal” number the way there is for nutrients or hormones. Many labs report results as undetectable/negative or in graded classes, and your clinician interprets that alongside your symptoms. If you have no symptoms with beetroot exposure and your result is negative or very low, that generally supports continued normal diet unless your clinician advises otherwise.
Elevated Beetroot (F319) IgE
An elevated result means your immune system has made IgE that recognizes beetroot, which increases the likelihood that beetroot could trigger allergic symptoms. Higher values often correlate with a higher probability of clinical reactivity, but they still do not guarantee that you will react or predict severity. If you have had rapid-onset symptoms, your clinician may recommend strict avoidance and a plan for accidental exposure, and may refer you to an allergist for confirmation and risk assessment.
Factors that influence Beetroot (F319) IgE
Your result is most meaningful when it matches your exposure history and symptom timing. Recent avoidance does not always eliminate IgE, but levels can change over months to years, especially in children or after long-term avoidance. Cross-reactivity can also contribute, where IgE made for one plant allergen recognizes a similar protein in another, which can produce a positive test even when symptoms are limited or absent. Medications like antihistamines do not typically affect blood IgE results (they can affect skin testing), but immune-modifying therapies and certain medical conditions can influence allergy testing strategies.
What’s included
- Beetroot (F319) Ige
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Frequently Asked Questions
Do I need to fast for a Beetroot (F319) IgE blood test?
Fasting is usually not required for allergen-specific IgE testing. If you are drawing other labs at the same visit (such as lipids or glucose), follow the fasting instructions for those tests.
What does a positive beetroot IgE test mean?
A positive result means you are sensitized to beetroot, meaning your immune system has made IgE antibodies that recognize beetroot proteins. Whether that sensitization causes symptoms depends on your history, timing after exposure, and sometimes confirmatory testing with an allergist.
Can a negative beetroot IgE test still mean I react to beets?
Yes. A negative result lowers the likelihood of an IgE-mediated beet allergy, but it does not fully exclude it. Some reactions are non-IgE mediated, and in some cases additional evaluation (skin testing, testing other ingredients, or supervised food challenge) is needed.
Is beetroot IgE the same as a food sensitivity test (IgG)?
No. IgE testing is used to evaluate immediate-type allergy risk and allergic symptoms. IgG food panels are not used to diagnose IgE-mediated allergy and do not predict anaphylaxis risk.
How soon after a reaction should I get tested?
You can typically test at any time because specific IgE is not a short-lived marker like histamine. If your clinician suspects a changing pattern or you have been avoiding beetroot for a long time, they may recommend timing and follow-up testing based on your situation.
Should I retest Beetroot (F319) IgE, and if so, when?
Retesting is most useful when it will change a decision, such as reassessing risk after a long period of avoidance or tracking trends in a child with evolving allergies. Many clinicians consider retesting on the order of months to a year depending on symptoms, age, and overall allergy history.