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Food Allergies

Food allergies are a growing global concern. Food allergies affect both children and adults, totaling as many as 550 million people globally.1 Unfortunately, many patients are sensitive to more than one foods.2

Allergic reactions can happen within minutes of coming in contact with an allergen. Though some patients experience relatively mild symptoms like urticaria (hives), others are at risk of a severe reaction like anaphylaxis.3 Food allergies, particularly in children, can lead to social issues, with affected children being excluded from school lunchrooms or activities.1 Their parents may need to take time off work to care for their children, causing an economic burden, and adult patients may end up avoiding foods that contain much needed protein, vitamins, and minerals.1

Preventing a reaction, unnecessary diet restrictions, or poor socio-economic outcomes starts by understanding the type of food allergy the patient has. Based on the presentation of the patient’s symptoms, a healthcare provider may begin to suspect that an allergy is immune- or non-immune mediated. Non-immune mediated reactions are considered to be food intolerances, while immune-mediated reactions are true food allergies that involve certain cells or antibodies, including IgE. The testing you conduct will give healthcare providers the information necessary to narrow down the cause of the patient’s food reactions and determine the most appropriate course of treatment.4


Most common food allergens2 

90% of food allergies are caused by 8 allergens: peanuts, tree nuts, milk, egg, soy, wheat, fish and shellfish

Subsequent to the identification of sensitization to whole allergens, identifying relevant allergen component sensitizations can help clinicians to personalize the management of their patients’ allergies. There continues to be studies for emerging treatments for food allergy, but still, no cure is currently available to healthcare providers or patients.3

  1. Pawankar R, Holgate ST, Canonica GW, et al. World Allergy Organization (WAO) White Book on Allergy. 2013. http://www.worldallergy.org/UserFiles/file/WhiteBook2-2013-v8.pdf. Accessed November 2017. 

  2. Kurowski K, Boxer RW. Food allergies: detection and management. Am Fam Physician. 2008;77:1678-1688.

  3. Burks AW, Tang M, Sicherer S, et al. ICON: Food allergy. J Allergy Clin Immunol. 2012;129:906-920.

  4. Manea I, Ailenei E, Deleanu D. Overview of food allergy diagnosis. Clujul Med. 2016;89(1):5-10.