Hazelnut allergy is a type of tree nut allergy characterized by an allergic reaction to proteins found in hazelnuts. It is one of the more common nut allergies and can range from mild to severe, including the risk of anaphylaxis. Like other food allergies, hazelnut allergy is an immune response and can be triggered by both raw and cooked hazelnuts....


What are symptoms of hazelnut allergy?

  • Hives, itching, or eczema
  • Swelling of the lips, face, tongue, throat, or other parts of the body
  • Wheezing, nasal congestion, or trouble breathing
  • Abdominal pain, diarrhea, nausea, or vomiting
  • Dizziness, lightheadedness, or fainting
  • Anaphylaxis in severe cases

What foods cross-react with hazelnut allergy?

People with hazelnut allergies may also react to other tree nuts and foods, such as:

  • Almonds, walnuts, cashews, and other tree nuts.
  • Peanuts, though they are legumes, due to potential cross-contamination.
  • Some fruits and seeds due to similar protein structures.