Food allergies are quite common. Understanding food allergies can be important for your own health and for the health of everyone around you. Everlywell's Food Allergy articles written by experts cover a range of subjects related to food allergies, such as what a food allergy is, the most common food allergies, symptoms to look out for, and food allergy testing options. Our articles offer tips for managing food allergies, including strategies for dining out and traveling. Learn more about our Food Allergy Test which measures your body’s immunoglobulin E (IgE) reactivity to common food allergens.