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Potato Allergy in Children: Clinical Features, Laboratory Findings, and Tolerance Development

Zeynep Gulec Koksal1, Kezban Ipek Demir2, Ezgi Ulusoy Severcan2

  • 1Department of Pediatric Allergy and Immunology, Ankara Etlik City Hospital, Ankara, Turkey, dr.zeynep.glc@gmail.com.

International Archives of Allergy and Immunology
|April 2, 2026
PubMed

Insights

Potato allergy, often seen in infants with eczema, can cause reactions to cooked potato. Over half of children develop tolerance, underscoring the need for regular reassessment.

Area of Science:

  • Pediatric Allergy
  • Food Hypersensitivity
  • Immunology

Background:

  • Potato allergy is an underrecognized childhood food allergy.
  • Clinical spectrum and natural history of potato allergy in children are not well-defined.
  • Early introduction of potato into diets contrasts with its poorly understood allergic potential.

Purpose of the Study:

  • Evaluate clinical characteristics of pediatric potato allergy.
  • Assess diagnostic findings and tolerance development.
  • Analyze the course of potato allergy in children at a tertiary center.

Main Methods:

  • Included 43 children diagnosed with potato allergy (Oct 2022-June 2025).
  • Diagnosis confirmed by clinical history, skin prick tests, and/or specific IgE.
  • Oral food challenges (OFCs) used for diagnosis and re-evaluation; tolerance assessed at follow-up.

Main Results:

  • Median age at diagnosis was 6 months; 76.7% had atopic dermatitis (AD).
  • Reactions more common with cooked (74.4%) vs. raw potato; cutaneous symptoms predominated (97.7%).
  • Anaphylaxis occurred in 4.6%; 55.8% achieved tolerance by follow-up.

Conclusions:

  • Potato allergy presents early, often with AD, and cooked potato can trigger severe reactions.
  • Cooked potato should not be considered safe due to potential for significant allergic reactions.
  • Over half of children develop tolerance, emphasizing reassessment and individualized management.
Abstract

Keywords:
Atopic dermatitisChildrenFood allergyPotato allergyTolerance

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