Reaction to tree nuts in those with peanut allergy
People with peanut allergy often worry about their chance of an allergic reaction to tree nuts (almond, cashew, pistachio, pecan, hazelnut). Only 7% of the patients with peanut allergy developed an allergic reaction to tree nuts in when challenged with ingestion of tree nuts. The study was published in The Journal of Pediatric Allergy and Immunology.
Powlin Manuel MD, MBA, MS., Pediatric allergist.