During hayfever season, eating certain fruits and nuts can cause an allergic reaction called pollen-food allergy syndrome. Consider it a case of mistaken identity. When pollen counts are high, your body is ultra-sensitive to anything that resembles your allergen, and unfortunately, the proteins in fruits and pollen are like Mary-Kate to Ashley, explains Jacqueline Eghrari-Sabet, M.D., founder of Family Allergy and Asthma Care in Gaithersburg, Maryland.
For example, people with birch or alder tree allergies may swell up from munching on apples, carrots, celery, hazelnuts, peaches, cherries and pears. Also, grass allergies could cause a reaction to eating tomatoes. If you don’t want to give up your favorite fruit, cooking or peeling it usually solves the problem, suggests Dr. Eghrari-Sabet.