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Despite guidelines promoting early allergen exposure, pediatric food allergy rates in the US have continued to rise. A new meta-analysis found prevalence climbed from 5.6% in 2012 to 7.9% in 2021, stabilizing at 7.2% by 2024. Experts say it's too soon to judge whether prevention efforts are working, as guideline adoption has been slow and inconsistent.
Despite widespread recommendations to introduce allergenic foods early in life, pediatric food allergy rates in the US haven't budged downward — and in fact have kept climbing. A population-based review and meta-analysis published in the Annals of Allergy, Asthma & Immunology found that food allergy prevalence rose from 5.6% in 2012 to 6.6% in 2018, then further to 7.9% in 2021, before stabilizing at 7.2% in 2024. The increase was most pronounced among 10- to 17-year-olds, with no significant change seen in the youngest children (ages 0–4).
Researchers caution against reading this as proof that early introduction isn't working. Early peanut introduction guidelines weren't released until 2015, and as of 2018, only 29% of general pediatricians and 65% of allergists had fully implemented them — meaning it may simply be too early to see a population-level impact.
By the Numbers:
Why it matters: With millions of children affected, food allergy remains a significant public health burden. The data underscore the urgent need to close the gap between evidence-based guidelines and real-world clinical practice — and to gather better objective data to track whether prevention strategies are truly making a dent.
