You may have oral allergy syndrome (also called pollen-food allergy syndrome). Some people also react to nuts or spices.
“Certain proteins in plant foods have similar structures to proteins in pollen,” explains Roxanne Oriel, physician and assistant professor of pediatrics, allergy and immunology at the Icahn School of Medicine at Mount Sinai Hospital in New York. So if you have hay fever, your immune system may mistake a food protein for a pollen protein.
Among the most common offenders: apples, peaches, melon, carrots, tomatoes, hazelnuts, and almonds.
In most people, the itching or swelling of the mouth, lips, or throat is mild and goes away on its own.
And many allergens that cause oral allergy syndrome are inactivated by heat. “I have patients who can’t eat a fresh apple, but apple pie or applesauce is fine,” says Oriel. “If the food is cooked or processed, they don’t have symptoms.”
But some allergens aren’t inactivated by heat and can cause more severe symptoms in some people with oral allergy syndrome. An allergist can help identify foods that are more likely to cause serious reactions.
The information in this article first appeared in the May 2019 issue of Nutrition Action Healthletter.
Find this article interesting and useful?
Nutrition Action Healthletter subscribers regularly get sound, timely information about staying healthy with diet and exercise, delicious recipes, and the inside scoop on healthy and unhealthy foods in supermarkets and restaurants. If you don’t already subscribe to the world’s most popular nutrition newsletter, click here to join hundreds of thousands of fellow health-conscious consumers.
Have a comment, question, or idea?
Send us an email at firstname.lastname@example.org. While we can’t respond to every email, we’ll be sure to read your message.