Foods are the most common cause of anaphylaxis in the outpatient setting, representing up to half of all cases of anaphylaxis treated in emergency departments in the USA.25 Additionally, food triggers account for up to 50%–80% of anaphylactic reactions in children.9,11 Perhaps even more importantly, food allergens account for 30% of fatal cases of anaphylaxis with an estimated 100 deaths per year due to food-induced anaphylactic reactions.26,27 Risk factors for fatal food anaphylaxis include an allergy to peanuts or tree nuts, a history of asthma, and failure to administer epinephrine promptly.28 Adults are up to nine times more likely to develop severe peanut or tree-nut-allergic reactions than children.28 Adolescents and young adults are also at risk for life-threatening anaphylaxis, given risk-taking behavior and frequent underreporting of symptoms in these age groups.