More babies outgrow peanut allergy than thought

New study shows 35% of children diagnosed with peanut allergy eventually outgrow it.

Nov 6, 2026

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More babies outgrow peanut allergy than thought

New study shows 35% of children diagnosed with peanut allergy eventually outgrow it.

In brief

New study shows 35% of children diagnosed with peanut allergy eventually outgrow it. A study finds 35% of babies diagnosed with peanut allergy outgrow it by oral food challenges. Originally reported by PhillyVoice.

New study on peanut allergies

A study published Wednesday found 35% of babies diagnosed with peanut allergy outgrow it by oral food challenges.

Previous understanding of peanut allergies

It was thought between 10% and 20% of children with peanut allergy eventually lose the diagnosis.

Study methodology

Study methodology

The study tested 1,275 babies under 18 months with peanut allergy diagnoses using medical supervision.

Oral food challenge results

Of 778 babies given increasing peanut amounts, 65% had reactions and 12% had potentially life-threatening reactions.

Study lead

Tim Brettig, a pediatric allergist and immunologist who helped lead the study, said they didn't expect this many children to pass food challenges.

NIH guidelines

NIH now advises freely introducing peanuts to infants with no eczema or food allergies.

FARE recommendations

FARE recommends delaying peanut introduction until age 3 to prevent allergies, but has since rescinded those guidelines.

Study implications

The findings support increased use of food challenges in allergy assessment and retesting children diagnosed with peanut allergy.

Philadelphia hospital

The Children's Hospital of Philadelphia offers information about peanut allergy and treatment on its website.

What it means

A study finds 35% of babies diagnosed with peanut allergy outgrow it by oral food challenges.

Read the original on PhillyVoice

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