Introducing peanut products to children early can significantly reduce the risk of developing peanut allergies, according to recent research. Children who consumed peanut pastes or peanut snacks regularly from four to six months old were found to be 71% less likely to have a peanut allergy by age 13 compared to those who avoided peanuts.
This dietary practice could prevent around 10,000 cases of peanut allergies annually in the UK (where the research was based) and about 100,000 cases worldwide, highlighting the transformative potential of early peanut exposure. Professor Gideon Lack of King’s College London, a leading researcher in pediatric allergy, emphasized that decades of advice against early peanut introduction had unnecessarily made parents cautious. He now advocates for introducing peanuts to babies as young as four months, especially those with eczema, who are at higher risk of developing peanut allergies.
The rising rates of peanut allergies in Western countries have been concerning, with one in 50 children in the UK affected and about 14,000 new cases each year. Although some children outgrow the allergy, the majority must avoid peanuts for life, risking severe allergic reactions from accidental exposure. Unlike tree nuts, peanuts are legumes, but about one-third of children with peanut allergies also react to at least one type of tree nut.
Previous studies demonstrated that early and regular consumption of peanut products reduced the risk of peanut allergies by 81% at age five. The latest Leap-Trio trial, following children to age 13, confirmed that early peanut introduction provides long-lasting protection. The trial showed that children who consumed peanuts early on maintained a 71% reduced risk of allergy, regardless of their peanut consumption habits after age five.
Professor Lack highlighted a “double advantage” of early peanut introduction: preventing most peanut allergies and enabling early identification and treatment of the condition in children who do develop it. Parents are encouraged to start giving their babies peanut butter or peanut puffs, ensuring the equivalent of a heaped teaspoon three times a week, while avoiding whole peanuts due to choking hazards.
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