The following is excerpted from an online article posted by MedicalXpress
Peanut allergy is one of the most common food allergies, affecting between 1% and 2% of people living in the West. And, for many years, their prevalence has been rising.
But a recent study out of the US shows that the rate of peanut allergy diagnoses in infants has actually declined. It appears this decline may be due to changes in allergy guidelines—highlighting the importance of introducing this common allergen early on.
The research showed that the total rate of peanut allergy decreased from almost 0.8% to 0.5%. This meant fewer at-risk infants developed a peanut allergy following the guideline change.
These findings mirror prior work in the UK showing that early exposure to peanuts before the age of five was linked to a reduced likelihood of developing an allergy.
Source: MedicalXpress
https://medicalxpress.com/news/2025-11-peanut-allergies-declining.html