COMMENTARY

Food Allergy: What You Need to Know

Stephanie A. Leonard, MD

Disclosures

November 15, 2010

In This Article

Prognosis for Food Allergy

In the past, it was anticipated that avoidance might increase the chances of outgrowing the food allergy and possibly contribute to the development of tolerance.[81,82] The American Academy of Pediatrics' 2000 dietary guidelines recommended that children avoid highly allergenic foods in infancy and early childhood.[83] This has not been shown to be beneficial; in fact, the incidence of food allergy has continued to rise despite these guidelines, which were revised in 2008.[8,84] One study in Jewish children noted a higher prevalence of peanut allergy in those born in the United Kingdom compared with those born and raised in Israel, where infants ingest peanut at an early age.[85] This suggests that some early oral exposure of allergen might be protective, but the timing, amount, and form of exposure necessary are not yet known.

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