Study Reveals Increased Frequency of Eating Eggs in Infancy Associated with Decreased Egg Allergy Later in Life

Allergists and paediatricians have recommended since 2017 that parents start to introduce peanut products around the time their child begins solid foods to prevent peanut allergy. A new study presented at this year’s scan College of Allergy, Asthma and Immunology (ACAAI) Annual Scientific Meeting reveals that early egg introduction is associated with decreased egg allergy.

‘We examined infant feeding and food allergy data from birth to 6 years, collected by 2237 parent surveys in the Infant Feeding Practices Study II conducted by the CDC and US-FDA,’ said Allergy and Immunology Fellow Giulia Martone, MD, ACAAI member and lead author of the study. 1379 participants had complete food allergy data for six years. ‘We found that children who hadn’t had egg introduced by 12 months were more likely to have egg allergy at six years.’

14 of 2237 surveys (0.6%) reported egg allergy at one year, and 11 of 1379 surveys (0.8%) reported egg allergy at six years. Children with an egg allergy at one-year-old and six years old had less frequent egg consumption at five, six, seven and ten months of age.

Egg allergy is the second most common food allergy throughout the world,’ said Xiaozhong Wen, MD, PhD, senior author and principal investigator of the study. ‘Current evidence suggests that early introduction of the egg during infancy, followed by consistent and frequent feedings, seems protective against the development of egg allergy. We are still investigating optimal timing of infant egg introduction and frequency of feeding.’