Red Kidney Bean F287 IgG
It measures IgG antibodies to red kidney bean proteins to support symptom-tracking and elimination plans, with easy ordering through Vitals Vault labs.
This panel bundles multiple biomarker tests in one order—your report explains how results fit together.
This test looks for IgG antibodies your immune system has made against proteins from red kidney bean (Phaseolus vulgaris). It is often ordered when you are trying to connect recurring symptoms with foods you eat regularly.
An IgG result is not the same thing as a classic “allergy test.” IgE-mediated allergies can cause immediate reactions and can be dangerous, while IgG findings are usually used as one piece of a broader symptom and diet-tracking plan.
If you already have a result in hand, the most useful next step is to interpret it alongside your symptoms, your typical diet, and any elimination-and-rechallenge plan you and your clinician choose.
Do I need a Red Kidney Bean F287 IgG test?
You might consider a Red Kidney Bean F287 IgG test if you notice symptoms that seem to follow meals but do not look like an immediate allergy. People often bring up bloating, abdominal discomfort, changes in stool pattern, headaches, skin flares, or “brain fog,” especially when symptoms are inconsistent and hard to pin to a single ingredient.
This test can also be helpful if you are already doing an elimination diet and want a structured way to decide which foods to trial first. Red kidney beans show up in chili, soups, bean salads, and many plant-forward meal plans, so they can be a frequent exposure even when you do not think of them as a “daily” food.
You generally do not need this test for urgent reactions such as hives, wheezing, throat tightness, or fainting after eating. Those symptoms call for prompt medical evaluation and typically IgE-focused allergy testing.
Testing is meant to support clinician-directed care and a thoughtful food plan, not to diagnose disease on its own.
This is a laboratory-developed test performed in a CLIA-certified lab; results should be interpreted in clinical context and are not a standalone diagnosis of food allergy or intolerance.
Lab testing
Order Red Kidney Bean F287 IgG testing through Vitals Vault.
Schedule online, results typically within about a week
Clear reporting and optional clinician context
HSA/FSA eligible where applicable
Get this test with Vitals Vault
Vitals Vault makes it straightforward to order Red Kidney Bean F287 IgG testing and get a clear lab report you can use in your next steps. If you are comparing options, the key is having a result you can pair with symptoms, diet history, and follow-up testing when needed.
After your blood draw, you can use PocketMD to talk through what an IgG finding can and cannot tell you, how to plan an elimination-and-rechallenge approach, and when it makes sense to broaden testing (for example, adding IgE testing if you have immediate reactions).
If you are tracking patterns over time, Vitals Vault also supports re-ordering so you can compare results after a sustained diet change, while keeping the focus on how you feel rather than chasing numbers alone.
- Order online and use a national lab network for sample collection
- PocketMD support to turn a lab value into a practical follow-up plan
- Easy re-testing when you and your clinician want to track changes
Key benefits of Red Kidney Bean F287 IgG testing
- Helps you prioritize whether red kidney beans belong on your elimination-and-rechallenge shortlist.
- Adds objective data when symptoms are delayed, vague, or overlap with multiple foods.
- Supports more targeted diet experiments instead of removing many foods at once.
- Can be interpreted alongside other bean/legume results to look for broader patterns of reactivity.
- May help explain why symptoms persist when you are otherwise eating “clean” but still consuming legumes frequently.
- Gives you a baseline to discuss with your clinician before making long-term dietary restrictions.
- Pairs well with PocketMD guidance so you can translate the result into next steps and retest timing.
What is Red Kidney Bean F287 IgG?
Red Kidney Bean F287 IgG is a blood test that measures immunoglobulin G (IgG) antibodies directed against proteins found in red kidney beans. In simple terms, it checks whether your immune system has “recognized” red kidney bean proteins and produced IgG antibodies that can be detected in your blood.
IgG is different from immunoglobulin E (IgE), which is the antibody class most associated with immediate-type food allergy. IgG responses can reflect exposure and immune recognition, and in some people they may correlate with symptoms that feel delayed or harder to connect to a specific meal. Because IgG can also be present in people who tolerate a food well, the result is most useful when you interpret it alongside your symptom history and a careful food trial.
Red kidney beans are legumes. If you react to one legume, you might still tolerate others, but some people notice patterns across beans, lentils, peanuts, or soy. Your overall diet, gut health, and how often you eat a food can all influence whether IgG is detectable.
IgG is a clue, not a diagnosis
A positive IgG result does not prove that red kidney beans are the cause of your symptoms, and a negative result does not guarantee perfect tolerance. The test is best used to guide a structured experiment: remove the food for a defined period, track symptoms, and then reintroduce it in a controlled way if appropriate.
Why the code “F287” matters
F287 is a laboratory identifier for red kidney bean as a specific food antigen target. It helps distinguish this test from other bean or legume antigens so your report can be compared consistently over time and across related food antibody tests.
What do my Red Kidney Bean F287 IgG results mean?
Low Red Kidney Bean F287 IgG
A low result generally means the lab did not detect a meaningful IgG antibody signal to red kidney bean proteins, or it was below the lab’s reporting threshold. If you rarely eat red kidney beans, a low result may simply reflect low exposure. If you eat them often and still have symptoms, a low result can be a reason to look at other ingredients in the same meals (spices, additives, other legumes) or consider non-food causes.
In-range (or negative) Red Kidney Bean F287 IgG
Many labs report IgG in categories (such as negative/low/moderate/high) rather than a single “optimal” target. An in-range or negative category usually suggests there is not a strong IgG signal to red kidney bean at the time of testing. If your symptoms are convincing, you can still discuss a time-limited elimination trial with your clinician, but the result makes red kidney bean a lower-priority suspect compared with foods that show higher reactivity.
High Red Kidney Bean F287 IgG
A high result means you have a stronger detectable IgG antibody response to red kidney bean proteins. This can happen when you eat the food frequently, when your immune system is more reactive, or when the food is a true symptom trigger for you. The practical takeaway is not “never eat beans,” but that a structured elimination-and-rechallenge plan may be more likely to produce a noticeable symptom signal if red kidney beans are a regular part of your diet.
Factors that influence Red Kidney Bean F287 IgG
How often you eat red kidney beans is one of the biggest drivers of IgG detectability, so recent diet history matters. Immune-modulating medications, recent infections, and chronic inflammatory conditions can sometimes shift antibody patterns. Digestive issues that change how your gut barrier functions may also affect how your immune system “sees” food proteins. Finally, different labs and methods can use different cutoffs, so compare results using the same lab when you are trending over time.
What’s included
- Red Kidney Bean (F287)Igg
Frequently Asked Questions
Is Red Kidney Bean F287 IgG the same as a food allergy test?
No. This test measures IgG antibodies, while classic immediate-type food allergy testing focuses on IgE antibodies and clinical history. If you have rapid symptoms like hives, swelling, wheezing, or throat tightness after eating, ask your clinician about IgE testing and urgent evaluation rather than relying on IgG alone.
Do I need to fast for a Red Kidney Bean IgG blood test?
Fasting is usually not required for an IgG food antibody test. If you are drawing other labs at the same visit (like lipids or glucose), follow the fasting instructions for those tests.
If my IgG is high, should I stop eating red kidney beans forever?
Not automatically. A high IgG result is best treated as a signal to run a time-limited, structured elimination and then a careful reintroduction if appropriate. Long-term restriction is a bigger decision that should consider your symptoms, nutrition needs, and whether the change actually improves how you feel.
How long should I eliminate red kidney beans before reintroducing them?
Many elimination trials run for about 2–4 weeks, but the best timing depends on your symptom pattern and your clinician’s guidance. The key is consistency: remove the food completely (including mixed dishes) and track symptoms, then reintroduce in a controlled way to see if symptoms return.
Can I have a negative Red Kidney Bean F287 IgG and still feel bad after eating beans?
Yes. Symptoms after beans can come from non-immune mechanisms, such as fermentable carbohydrates (FODMAPs), portion size, preparation method, or other ingredients in the meal. A negative IgG result can be a reason to broaden the investigation rather than forcing the conclusion that beans are not involved.
When should I retest Red Kidney Bean F287 IgG?
Retesting is most useful after a sustained change in exposure, such as several weeks to a few months of avoidance or reduced intake, especially if you are tracking whether symptoms and antibody patterns move together. For trending, try to use the same lab method and discuss timing with your clinician or PocketMD.