The Singular Triumph of Driving Down Peanut Allergies

In 2015, The New England Journal of Medicine published a major study showing that feeding babies peanut products significantly lowered their risk of developing peanut allergies. The findings contradicted advice that the American Academy of Pediatrics had issued previously, which said that peanuts, along with other nuts and fish, should not be introduced until children are at least 3. Based on the study—called the Learning Early About Peanut Allergy, or LEAP, trial—the AAP quickly revised its…