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Cohort study
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
  1. Katrina J Allen1,
  2. Jennifer J Koplin1,2
  1. 1Department of Gastro and Food Allergy, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
  2. 2Centre for Epidemiology and Biostatistics, University of Melbourne, Parkville, Victoria, Australia
  1. Correspondence to : Professor Katrina J Allen, Department of Gastro and Food Allergy, Murdoch Children's Research Institute, Royal Children's Hospital, Flemington Road, Parkville, VIC 3052, Australia; katie.allen{at}mcri.edu.au

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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.

Context

Peanut allergy affects up to 3% of children at the age of 1 year.1 Mothers are increasingly concerned about the implications of exposing children to peanuts prenatally through their own diet or their child's diet in early infancy. A lack of high-quality evidence about the …

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