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Allergies et intolérances alimentaires

Nut Allergy

Allergic reaction to nut proteins causing mild to severe symptoms

Definition

Immune reaction to proteins in nuts, particularly cashews, Brazil nuts, pecans, and pistachios, distinct from peanut allergy although often coexisting

How it works

A nut allergy results from an inappropriate immune response to specific nut proteins. Unlike peanuts, nuts are tree fruits. Patients allergic to nuts can react to one or several varieties. This allergy tends to persist into adulthood, and symptoms can be severe. Cross-reactions between different nuts are possible but not systematic

Role

Nut allergy triggers an immune reaction affecting the respiratory, digestive, and skin systems

Examples

  • Walnuts
  • Cashews
  • Pistachios
  • Brazil nuts
  • Pecans
  • Almonds
  • Hazelnuts

Recommendations

Read labels carefully to identify nuts and derivatives. Be cautious of processed foods where nuts may be present or in trace amounts. Work with an allergist to precisely identify problem nuts and tolerated ones

Key takeaway

Nut allergy requires adapted avoidance according to specific nut types, with vigilance on cross-contamination

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