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The 2015 NEJM study on peanut ingestion and allergies in children suggested that exposing infants to peanuts before age 1 (even as young as 4 months) actually helped prevent peanut allergy from developing, lowering that risk by as much as 81 percent. Instead of provoking an allergy, early exposure seemed to help build tolerance.
Although this research is great news on possible interventions to help prevent such food allergies from developing, please caution parents and caregivers that whole peanuts or peanut pieces should never be fed to children under age four years, due to the risk of choking and aspiration. When introducing to an infants' diet, use of smooth, not chunky, peanut butter is advisable. Spread a thin layer on toast, crackers, or fruit.
Although babies should never be given peanuts, only because they pose a choking hazard, peanut protein in safe forms are a different story!
References:
Randomized Trial of Peanut Consumption in Infants at Risk for Peanut Allergy. NEJM 2015; 372:803-813February 26, 2015DOI: 10.1056/NEJMoa1414850
Early consumption of peanuts in infancy is associated with a low prevalence of peanut allergy. J Aller Clin Immuno 2008 Volume 122, Issue 5, Pages 984–991. DOI: http://dx.doi.org/10.1016/j.jaci.2008.08.039
Sources:
Feeding Infants Peanut Products Could Prevent Allergies, Study Suggests. NYT 2/23/15
EARLY EXPOSURE TO PEANUTS HELPS PREVENT ALLERGIES IN KIDS. AP 2/23/15
Treatment reduces kids' peanut allergy risk up to 86%. USA Today 2/23/15
Exposing infants to peanuts causes big reduction in peanut allergy, study shows. Washington Post 2/23/15
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