Severe allergic reaction after sipping energy drink traced to unexpected source

Anaphylaxis – a severe, potentially life-threatening allergic reaction – is usually tied to peanuts or shellfish, but a recent case has brought up a new concern.

According to a report by the American College of Allergy, Asthma and Immunology (ACAAI), a teen experienced a severe allergic reaction from an energy drink.

The case, which was presented at the ACAAI’s 2026 Annual Scientific Meeting held Nov. 12–16 in Phoenix, Arizona, involved a 15-year-old boy who developed "widespread hives,"...