Does Eating Nuts During Pregnancy Reduce Baby’s Allergy Risk?

The children of women who regularly ate peanuts or tree nuts during pregnancy appear to be at lower risk for nut allergies than other kids, according to a new study published Monday.

The study, published in the Journal of the American Medical Association, is the first to demonstrate that a mother who eats nuts during pregnancy may help build up a baby’s tolerance to them after birth, its lead author, Dr. Michael Young, told CNN. The effect seemed to be strongest in women who ate the most peanuts or tree nuts — five or more servings per week, according to the study, which controlled for factors such as family history of nut allergies and other dietary practices.

Peanut and tree nut allergies tend to overlap, according to the researchers. There is currently no formally recognized medical guidance for nut consumption during pregnancy or infancy. In 2008, citing growing evidence that early exposure could be beneficial, the American Academy of Pediatrics retracted guidance suggesting that parents withhold tree nuts from children under the age of 3, saying there was “no convincing evidence” for delaying their introduction.

Young said more research will come out in 2014 assessing the impact of infant diets on nut allergies, which should give medical policymakers enough information to offer broad recommendations. Until then, it’s up to individuals and their doctors, Young said.

“We’re not providing cause and effect, so we have no basis for recommending diets,” one of the authors offered. But he adds that his team sees “no reason for pregnant women to limit their diets with an eye to allergy prevention in children.”

I’m Dr. Michael Hunter.

The small print: The material presented herein is informational only, and is not designed to provide specific guidance for an individual. Please check with a valued health care provider with any questions or concerns. As for me, I am a Harvard- , Yale- and UPenn-educated radiation oncologist, and I practice in the Seattle, WA (USA) area. I feel genuinely privileged to be able to share with you. If you enjoyed today’s offering, please consider clicking the follow button at the bottom of this page.

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Reference: http://www.cnn.com/2013/12/23/health/nut-allergy-study/index.html?hpt=hp_t2

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