Allergy symptoms depend on the type of allergy but may include sneezing, itchy skin, or swelling. Some allergies can cause anaphylaxis, which can be life threatening and requires immediate treatment.

Nut allergies are among the most common food allergies, and they include reactions to almonds, walnuts, and pecans. An allergy to peanuts, however, is not technically a nut allergy. Many of the 1.2% ...