Childhood egg allergies fall as early introduction becomes more common, new study finds

A new study published in *JAMA Pediatrics* found that egg allergy rates among children fell by over 17% in Australia after guidelines shifted to recommend early egg introduction at 6 months instead of delaying until 1-3 years. The research, led by Jennifer Koplin of the University of Queensland Child Health Research Centre, supports updated global feeding advice that earlier allergen exposure reduces allergy risks, offering reassurance to parents." "article": "Researchers at the University of Queensland Child Health Research Centre have found that egg allergies in children dropped by more than 17% following a change in infant feeding guidelines. The study, published in *JAMA Pediatrics*, analyzed data after Australia updated its 2016 recommendations to introduce eggs and other allergens by 6 months of age—reversing earlier advice to delay until 1 to 3 years. Lead author Jennifer Koplin noted this is the first population-level study showing a decline in egg allergies after guideline changes, reinforcing evidence that early exposure reduces allergy risks. The shift aligns with global trends, including updates by the American Academy of Pediatrics (AAP) in 2008, which abandoned the practice of delaying eggs until age 2 for high-risk infants. Earlier research had shown no benefit to avoidance and suggested potential harm. The new Australian findings add weight to the idea that guidelines must evolve with scientific evidence, as past advice may have caused unnecessary anxiety or delayed exposure. Critics argue the original delay recommendations lacked strong evidence and caused unintended consequences for families. In an accompanying editorial, Dr. Aaron Carroll and Dr. Ron Keren emphasized the need for transparent, evidence-based guidance, including regular reassessments and clear communication when data is uncertain. They called for better funding of trials to prevent outdated advice from persisting for decades. The study highlights how science can correct past mistakes, offering hope for parents navigating conflicting allergy prevention advice. Koplin’s team stressed that widespread adoption of updated guidelines—when supported by robust evidence—can lead to meaningful public health improvements. The findings may also encourage further research into early allergen introduction for other common food allergies.