New Study Reveals Early Introduction of Eggs and Peanut Butter Can Reduce Allergy Risk in Babies
A recent study has shed light on a crucial time window early in a child’s life, showing that introducing eggs and peanut butter into their diets at around six months can significantly decrease the likelihood of developing allergies to these foods later on. This finding contradicts previous advice that recommended delaying the introduction of these allergenic foods until after the first year of life to prevent potential allergic reactions.
The research, conducted by a team from the University of Western Australia, compared two groups of children in Australia: one group whose parents received no specific feeding advice and another group whose parents were instructed to start incorporating eggs and peanut butter into their infants’ diets at six months of age.
According to Summer Walker, a health scientist at the University of Western Australia, the results were striking. Among the babies whose caregivers followed the updated guidelines and introduced eggs and peanut butter early, the prevalence of egg allergy decreased from 12 percent to 3 percent, and peanut allergy dropped from around 6 percent to 1 percent.
Furthermore, the study found that introducing these foods at the six-month mark made a significant difference in allergy development by the age of 12 months. While cow’s milk was also included in the study, the impact on reducing allergies was less pronounced.
The six-month milestone for introducing allergenic foods has now been incorporated into the official Infant Feeding and Allergy Prevention Guidelines proposed by the Australasian Society of Clinical Immunology and Allergy (ASCIA). The study’s findings confirm the safety and effectiveness of these updated recommendations.

The parents in the group that received feeding guidelines were provided with hard copies of the ASCIA guidelines, emphasizing the importance of spreading awareness about the latest expert advice on reducing allergy risk in infants.
Debbie Palmer, a research dietitian at the University of Western Australia, highlights the significance of these findings for families with a history of allergies. “Some parents are still confused about when to introduce allergens – especially those families with a history of allergies,” she explains.
While the study focused on allergies up to 12 months of age and did not completely eliminate allergies to peanut butter and eggs, it underscores the importance of early introduction of allergenic foods in reducing allergy risk. With food allergies on the rise, understanding the relationship between diet and immune responses is crucial.
The research, published in the Journal of Allergy and Clinical Immunology: In Practice, provides strong evidence that following the updated guidelines can have a positive impact on reducing food allergies, even in children with a genetic predisposition to allergies.