Nut allergies

Food allergy - nuts; Peanut allergy; Nut allergy

A nut allergy is a type of immune response triggered by tree nuts and peanuts. Peanuts are legumes, not nuts, but many people who are allergic to peanuts are also allergic to nuts. Nut allergies are a type of food allergy.

Most people who develop nut allergies will have them for the rest of their life.


Antigens are large molecules (usually proteins) on the surface of cells, viruses, fungi, bacteria, and some non-living substances such as toxins, chemicals, drugs, and foreign particles. The immune system recognizes antigens and produces antibodies that destroy substances containing antigens.



Exams and Tests


Support Groups

Outlook (prognosis)

Possible Complications

When to Contact a Medical Professional