University of Oklahoma Health Sciences Center

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Author/s:

Edward G A Iglesia, Mildred Kwan, Yamini V Virkud, Onyinye I Iweala

Date Added:

March 6, 2024

Journal/Publication:

JAMA

Publisher:

American Medical Association

Publication Date:

February 13, 2024

Issue:

Volume:

331

Pages:

510-521

URL:

Management of Food Allergies and Food-Related Anaphylaxis

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jama.2023.26857

PMID (1):

38349368

Keywords

Alpha-Gal Syndrome

Anaphylaxis

Food Allergies

Food Allergy

MeSH

Peanut Hypersensitivity

epinephrine

Food Hypersensitivity

RPR Commentary

A review of the management of IgE-mediated food allergies, a concern for 8% of children and 11% of adults. James W. Mold, MD, MPH

Abstract

Importance: An estimated 7.6% of children and 10.8% of adults have IgE-mediated food-protein allergies in the US. IgE-mediated food allergies may cause anaphylaxis and death. A delayed, IgE-mediated allergic response to the food-carbohydrate galactose-α-1,3-galactose (alpha-gal) in mammalian meat affects an estimated 96 000 to 450 000 individuals in the US and is currently a leading cause of food-related anaphylaxis in adults.

Observations: In the US, 9 foods account for more than 90% of IgE-mediated food allergies-crustacean shellfish, dairy, peanut, tree nuts, fin fish, egg, wheat, soy, and sesame. Peanut is the leading food-related cause of fatal and near-fatal anaphylaxis in the US, followed by tree nuts and shellfish. The fatality rate from anaphylaxis due to food in the US is estimated to be 0.04 per million per year. Alpha-gal syndrome, which is associated with tick bites, is a rising cause of IgE-mediated food anaphylaxis. The seroprevalence of sensitization to alpha-gal ranges from 20% to 31% in the southeastern US. Self-injectable epinephrine is the first-line treatment for food-related anaphylaxis. The cornerstone of IgE-food allergy management is avoidance of the culprit food allergen. There are emerging immunotherapies to desensitize to one or more foods, with one current US Food and Drug Administration-approved oral immunotherapy product for treatment of peanut allergy.

Conclusions and relevance: IgE-mediated food allergies, including delayed IgE-mediated allergic responses to red meat in alpha-gal syndrome, are common in the US, and may cause anaphylaxis and rarely, death. IgE-mediated anaphylaxis to food requires prompt treatment with epinephrine injection. Both food-protein allergy and alpha-gal syndrome management require avoiding allergenic foods, whereas alpha-gal syndrome also requires avoiding tick bites.

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