A new study from Northwestern University and Ann & Robert H. Lurie Children’s Hospital of Chicago shows that simple tools can drastically improve pediatricians’ adherence to national peanut allergy prevention guidelines. Using a training video, electronic health record prompts, and parent handouts, the likelihood that doctors recommended the early introduction of peanut products to infants increased nearly 15-fold. The findings, published Oct. 6, 2025, in the journal Pediatrics, could mark a turning point in the fight against the rising prevalence of peanut allergies in children.
Peanut Allergies: A Growing Problem
Peanut allergies are the most common food allergy in children in the U.S., affecting over 2% of children. Since 2017, national guidelines recommend introducing peanut-containing foods between 4 and 6 months of age to reduce the risk of peanut allergy by more than 80%. This recommendation is based on a landmark study that showed early introduction of peanuts significantly reduces allergy risk. However, many pediatricians do not consistently follow these guidelines, often due to time constraints or lack of resources during well-child visits.
Intervention Study Yields Clear Results
The randomized trial included 30 pediatric practices in Chicago and Peoria, Illinois, analyzing 18,480 infant visits. Intervention practices received a package of tools: a training video for clinicians, electronic health record (EHR) prompts, visual handouts for parents, and a scorecard to identify severe eczema. Control practices received no additional materials.
The results show a significant improvement: In the intervention group, guideline adherence for low-risk infants (those without eczema or egg allergy) was 84%, compared with 35% in the control group. For high-risk infants, adherence was 27% in the intervention group versus 10% in the control group. Additionally, 36% of high-risk infants in the intervention group were referred to or tested by allergists, compared with only 10% in the control group.
“Our tools significantly improved pediatricians’ ability to help families with early peanut introduction,” says Dr. Ruchi Gupta, lead author and professor of pediatrics at Northwestern University. “This support is crucial, as four- to six-month well-child visits are often very time-intensive.”
Implications for Practice and Parents
The study emphasizes the importance of simple, scalable tools to promote the implementation of prevention guidelines. "Using EHR data was critical to accurately measure adherence to the guidelines," explains Lucy Bilaver, the study's lead statistician. The findings suggest that such interventions could be deployed nationwide to strengthen peanut allergy prevention.
For parents, this means clear instructions: As soon as an infant is developmentally ready to eat solid food, peanut-containing foods should be introduced, ideally between 4 and 6 months of age. Handouts and guides, like those used in the study, offer practical tips for safe introduction.
Long-term effects
The study follows the participating infants until they are 2.5 years old to see if the intervention actually reduces the incidence of peanut allergies. "Our goal is to reverse the rise in food allergies through prevention," says Gupta. The findings could form the basis for broader initiatives to reduce food allergies.
The study was funded by the National Institute of Allergy and Infectious Diseases (NIAID U01AI138907).
Source:
Northwestern University
Pediatrics
Original publication: https://news.northwestern.edu/stories/2025/10/new-training-tools-boost-pediatricians-adherence-to-early-peanut-introduction-guidelines
Keywords:
Peanut allergy, prevention, pediatricians, infants, guidelines
