They look so beautiful, like brightly-colored jewels in a glass jar, but anyone with asthma who’s sensitive to sulfites should just admire maraschino cherries from afar. Canned fruits and bottled fruit juices—such as lemon and lime juice—may also contain preservatives that could trigger bronchospasms or other symptoms of asthma.
7. Any foods to which you’re allergic
You’re probably already on high alert for foods that you know you’re allergic to. Keep on keepin’ on, since those foods may also play a role in triggering asthma attacks. The American Academy of Allergy, Asthma & Immunology reports the foods that cause the majority of allergic reactions include tree nuts, wheat, soy, peanuts, eggs, fish, shellfish and cow’s milk. If you’re allergic to any of those foods, definitely avoid eating them—or anything that’s cross-contaminated by them.