Lab test

Red Kidney Bean Allergy Test - Allergies

A red kidney bean allergy test uses a blood sample to measure allergen-specific IgE antibodies against red kidney bean proteins.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A red kidney bean allergy test uses a blood sample to measure allergen-specific IgE antibodies against red kidney bean proteins. Red kidney beans are legumes, a family that also includes peas, lentils, peanuts, and soy, so reactions can sometimes overlap with sensitivity to those foods. The test is a screening tool for suspected food allergy rather than a diagnosis on its own. A provider may order it after a reaction to red kidney beans, or as part of a broader legume allergy evaluation. Results are read with symptoms and medical history.

• Red kidney bean-specific IgE Antibodies produced against red kidney bean proteins; used to assess sensitization to red kidney beans.

• People who develop hives, itching, or swelling after eating red kidney beans
• Individuals with tingling or itching in the mouth after beans
• Those with digestive upset, nausea, or diarrhea after legumes
• People with eczema or skin reactions who suspect a legume trigger
• Anyone who has reacted to related legumes such as peas, lentils, or soy

• No fasting is required for this IgE allergy test
• The blood sample can be collected at any time of day
• Tell the provider about all medications you take
• No special diet is needed beforehand

Results are reported as an IgE level or class for red kidney bean. An elevated value may indicate sensitization, but sensitization does not always mean a person will react when eating red kidney beans. A low or undetectable level makes a true red kidney bean allergy less likely, though it does not rule one out. Because red kidney beans are legumes, a provider may consider cross-reactivity with peas, lentils, peanut, or soy. Discuss all results with a healthcare provider before changing your diet.

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