What Is Beetroot Allergy?
Beetroot allergy is an allergic reaction that occurs when the immune system mistakenly identifies the proteins found in beets (Beta vulgaris) as harmful substances. While relatively rare compared to other food allergies, an immune response is triggered upon ingestion or, in some cases, skin contact, leading to the release of histamine and other chemicals.
Beetroot allergy is often associated with Oral Allergy Syndrome (OAS). Because beets grow in the ground and contain proteins similar to certain pollens, individuals with hay fever—specifically those allergic to pigweed pollen or ragweed—may experience cross-reactivity. This is known as pollen-food allergy syndrome, where the body’s IgE antibodies recognize similar protein structures across different plant species.
Those who are allergic to beetroot may also experience cross-reactive symptoms with these related foods:
- Spinach
- Swiss Chard
- Quinoa
- Sugar Beets
- Pollen (specifically Pigweed and Chenopodium)
Beetroot Allergy Symptoms
Symptoms of a beetroot allergy can range from mild to severe and usually appear within minutes of consumption. Common symptoms include:
- Skin rash or hives (urticaria)
- Itching or tingling sensation in the mouth or throat
- Swelling of the lips, tongue, or throat
- Nasal congestion or sneezing
- Wheezing or difficulty breathing
- Abdominal pain or cramping
- Nausea and vomiting
- Diarrhea
- Dizziness or lightheadedness
In rare cases, beetroot can trigger anaphylaxis, a life-threatening reaction that requires immediate medical attention.
Beetroot Allergy Diagnosis
There are several ways to diagnose a beetroot allergy at our NYC clinics:
A skin prick test is a common diagnostic tool. A small amount of beetroot extract is placed on the skin, which is then lightly pricked. If red, itchy bumps (wheals) develop within 15–20 minutes, it indicates an allergy.
A blood test measures the level of beetroot-specific IgE antibodies in your system. This is often recommended for patients with skin conditions like eczema that might interfere with skin testing, or for those at risk of a severe reaction.
Under strict medical supervision, a patient may be asked to consume small, increasing amounts of beetroot to observe the reaction. This is considered the gold standard for confirming a food allergy.
Beetroot Allergy Treatment
The primary treatment for beetroot allergy is strict avoidance of beets and products containing beet derivatives (such as beet sugar or natural red food coloring derived from beets).
For mild reactions, such as itching or hives, antihistamines can help alleviate discomfort. If the allergy causes respiratory issues, a physician may prescribe inhaled corticosteroids.
For individuals at risk of anaphylaxis, carrying an epinephrine auto-injector (such as an EpiPen) is essential. Epinephrine is the only treatment for severe allergic reactions and must be administered immediately during an emergency.
If you are in the NYC area, our specialists can help develop a personalized management plan. Just book an appointment online or call (212) 686-6321 to get started.
Beetroot Allergy Frequently Asked Questions
Is Beetroot Allergy Common?
Beetroot allergy is considered uncommon. However, because beets are frequently used as a natural coloring agent (often listed as “beet juice” or “beet color”) in processed foods, accidental exposure is a growing concern for sensitive individuals.
What Causes Beetroot Allergy?
The reaction is caused by the immune system reacting to specific proteins in the vegetable. It is frequently linked to cross-reactivity with certain weed pollens, making it more common in individuals who already suffer from seasonal allergies.
Can You Be Allergic to Beet Sugar?
While highly refined beet sugar typically has the proteins removed, some highly sensitive individuals may still react to less refined versions or products where cross-contamination has occurred during manufacturing.
How Is Beetroot Allergy Diagnosed?
Allergists typically use a combination of medical history, skin prick testing, and blood tests to confirm the allergy.
How Is Beetroot Allergy Treated?
There is no cure for beetroot allergy. Management involves avoiding beets in all forms. Mild symptoms are treated with antihistamines, while severe reactions require epinephrine.
Can Cooking Beets Reduce the Allergic Reaction?
In some cases of Oral Allergy Syndrome, heat can break down the proteins responsible for the reaction. However, this is not true for everyone, and you should consult with an allergist before attempting to eat cooked beets if you have a known allergy.