Updated dietary guidelines in the US have significantly reduced the number of children with specific food allergies, reducing their need to avoid foods containing ingredients such as peanuts and eggs.

A major update to advice for preventing allergies in the US was published in 2015 , with further revisions in 2017 . A study led by a team from the Children's Hospital of Philadelphia (CHOP) now suggests that allergies have reduced in tens of thousands born in the years since.

The guidelines focus on anaphylactic food allergies, also known as immunoglobulin E (IgE)-mediated allergies due to the antibody involved. These allergic reactions happen quickly and can be severe or even life-threatening.

In 2015, the guidance changed to recommend that peanut-based food products be introduce

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