Latex–Food Cross-Reactivity: Foods to Watch

It sounds bizarre: "I'm allergic to rubber gloves, so why does my mouth itch when I eat a banana?" This condition is called Latex-Fruit Syndrome, and it affects about 30-50% of people with a latex allergy.

The connection isn't random. It happens because the proteins found in natural rubber latex (from the Hevea brasiliensis tree) are structurally almost identical to proteins found in certain plants.

The Immune Mistake

Your body's immune system is like a security guard looking for a specific criminal (latex). However, the proteins in avocados or kiwis look so much like the criminal that the guard attacks them, too. This is called biological cross-reactivity.

High-Risk Foods

These foods have the strongest link to latex allergy. If you are allergic to latex, you have a high chance of reacting to:

• Avocado: The most common culprit.
• Banana: Often causes oral allergy symptoms (itching mouth/throat).
• Chestnut: A severe trigger.
• Kiwi: High correlation.

Moderate-Risk Foods

The connection is less frequent but still possible with:

• Apple
• Carrot
• Celery
• Papaya
• Potato
• Tomato