It is important to distinguish a true food allergy from other abnormal responses to food, that is, food intolerances, which actually are far more common than food allergy.
On oluline teha vahet tõelise toiduallergia muudest ebatavalised reaktsioonid toidule, mis on, toidu talumatuse, mis tegelikult on palju ühist kui toiduallergia.