High consumption of peanuts or tree nuts by non-allergic mothers around the time of pregnancy reduces the risk of nut allergy in the child.

Abstract

Implications for practice and research: Peanut or tree nut avoidance during pregnancy is not recommended for non-allergic mothers. Maternal nut consumption does not appear to increase the risk of nut allergy in offspring and may even be protective. Further research is required to clarify the role of maternal nut consumption during pregnancy and lactation; research should consider potential differential effects of the genetic risk of peanut allergy in children.