Did the US get peanut allergy prevention wrong for years?
Decades of advice to avoid infant peanuts have been overturned by new evidence. Large studies, including a 2025 analysis of 120,000 children, show early peanut introduction significantly lowers allergy risk. The landmark LEAP trial in 2015 demonstrated an 81% reduction in peanut allergy for high-risk infants who consumed peanuts early, with protection lasting into adolescence.
Decades of advice to avoid infant peanuts have been overturned by new evidence. Large studies, including a 2025 analysis of 120,000 children, show early peanut introduction significantly lowers allergy risk. The landmark LEAP trial in 2015 demonstrated an 81% reduction in peanut allergy for high-risk infants who consumed peanuts early, with protection lasting into adolescence.
