Chestnut Allergy in Nut-Allergic Individuals: Cross-Reactivity Risk

Chestnuts are tree nuts. Individuals with tree nut allergy should avoid chestnuts due to cross-reactivity risk.

  • Chestnut proteins resemble other tree nut allergens.
  • Reactions can include anaphylaxis (hives, swelling, respiratory distress, vomiting).
  • Skin prick/blood testing can confirm specific chestnut sensitization.

If nut-allergic, treat chestnuts as a potential allergen until evaluated by an allergist.

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