Can kiwi make your lips itchy?

It's uncommon, but yes, some people may experience an itchy sensation on their lips after consuming kiwi. This reaction is typically associated with an oral allergy syndrome (OAS), also known as pollen-food allergy syndrome.

OAS occurs when the body mistakenly recognizes certain proteins in certain raw fruits, vegetables, or nuts as being similar to the proteins found in pollen. When a person with OAS consumes these foods, their immune system reacts by producing antibodies that bind to the proteins, leading to the release of histamine and other inflammatory substances. These substances cause symptoms such as itching, swelling, tingling, or discomfort in the mouth, lips, tongue, or throat.

Kiwi is one of the foods that can trigger OAS in some individuals who are allergic to certain pollens, such as birch, mugwort, or hazel. The cross-reactivity between kiwi and these pollens is due to the similarity in the protein structures. People with a history of pollen allergies, especially to the mentioned pollens, should be cautious when trying kiwi to prevent potential allergic reactions.

It's essential to note that not everyone who is allergic to pollen will develop OAS to kiwi or other foods. If you suspect you may have an OAS or food allergy, it's essential to consult with an allergist for proper diagnosis and management. They can perform allergy tests to determine the specific allergens causing your symptoms and provide suitable recommendations to avoid them.