Allergy 101

Tree Nuts


Tree nut allergy is one of the most common food allergies in children and adults. Tree nuts can cause a severe, potentially fatal, allergic reaction.

Younger siblings of children who are allergic to tree nuts may be at increased risk for allergy to tree nuts.

A person with an allergy to one type of tree nut has a higher chance of being allergic to other types.

Doctors use hazelnuts to study tree nut allergies.

The raw nut protein usually causes a more severe reaction than the oil, and extra roasting or processing can reduce the allergic reaction.

Foods that contain tree nuts or any of these ingredients:

  • Almond
  • Artificial nuts
  • Brazil nut
  • Beechnut
  • Butternut
  • Cashew
  • Chestnut
  • Chinquapin nut
  • Coconut
  • Filbert/hazelnut
  • Gianduja
  • Ginkgo nut
  • Hickory nut
  • Litchi/lichee/lychee nut
  • Macadamia nut
  • Marzipan/almond paste
  • Nangai nut
  • Natural nut extract
  • Nut butters
  • Nut meat
  • Nut milk
  • Nut paste
  • Nut pieces
  • Pecan
  • Pesto
  • Pili nut
  • Pine nut
  • Pistachio
  • Praline
  • Shea nut
  • Walnut
  • Symptoms:

  • Abdominal pain, cramps, nausea and vomiting
  • Diarrhea
  • Difficulty swallowing
  • Itching of the mouth, throat, eyes, skin or any other area
  • Nasal congestion or a runny nose
  • Nausea
  • Shortness of breath
  • Prevention

    As with most food allergies, the best way to avoid triggering an allergic reaction is to avoid eating the offending item. People who are diagnosed with an allergy to a specific tree nut may be able to tolerate other tree nuts, but allergists usually advise these patients to avoid all nuts.


    If someone is showing signs or symptoms of a life-threatening allergic reaction you need to administer their EpiPen immediately as prescribed and call 911.

    Alternative Foods:

    sunflower seed butter

    sun flower seeds

    soy nut butter

    soy nuts (dried)


    Kids' Allergies: Peanuts and Tree Nuts