Yes, you can be allergic to walnuts. Allergies to tree nuts like walnuts are common and often severe.
Walnut allergies, like other tree nut allergies, are frequently diagnosed in early childhood, often by the age of 2. Unfortunately, the number of tree nuts to which a person is allergic can increase over time. Approximately 30% of individuals with a tree nut allergy are allergic to more than just one type of nut. This highlights the importance of careful labeling and avoidance of all tree nuts if a walnut allergy is present.
Key Facts about Walnut Allergies:
- Common: Walnut allergy is one of the more prevalent tree nut allergies.
- Severity: Reactions can range from mild (hives, itching) to severe (anaphylaxis).
- Early Onset: Allergies often develop in early childhood.
- Cross-Reactivity: It's common to be allergic to multiple tree nuts if allergic to walnuts.
Symptoms of a Walnut Allergy:
Symptoms can vary but may include:
- Hives or skin rash
- Itching
- Swelling of the lips, tongue, or throat
- Nausea, vomiting, or diarrhea
- Difficulty breathing
- Anaphylaxis (a life-threatening reaction requiring immediate medical attention)
Diagnosis and Management:
If you suspect a walnut allergy, consult with an allergist. They can perform skin prick tests or blood tests to confirm the allergy. The primary management strategy is strict avoidance of walnuts and products containing walnuts. Carrying an epinephrine auto-injector (EpiPen) is crucial for individuals at risk of anaphylaxis. Always read food labels carefully to ensure products are walnut-free.
