Mandatory labeling food according to current European regulations, is the vegetable most frequently involved in severe allergic reactions, also called anaphylaxis, induced by exercise and associated with plant foods.

It is likely that a patient allergic to celery is also the carrot and cucumber because they are from the same family.

Celery allergy usually occurs more after its consumption in raw than once cooked, since there is evidence that heat can reduce its ability to produce allergic reactions, although this reduction may vary according to each person.

Often, celery allergy is also associated with respiratory allergy (rhinitis and / or asthma) due to allergy to pollens. The best studied association has been the celery-artemisia-carrot-species syndrome that mainly affects the population of Central Europe. Patients with this syndrome usually have allergy to celery, carrot, species and pollen from a plant called artemisia.