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Early consumption may prevent peanut allergy, new study suggests

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(CNN) — Parents who have children with food allergies know all too well about the headaches in keeping their lives “nut-free.”

But a new study suggests that peanut allergy can be prevented at a young age by embracing peanuts, not avoiding them.

Eating peanut products as a baby significantly reduces the risk of developing the allergy by 80% in high-risk infants, a study in the New England Journal of Medicine suggests.

Peanuts are one of the leading causes of food allergy reaction and can be fatal.

An estimated 400,000 school-aged children in the United States have this allergy, according to the American College of Allergy, Asthma and Immunology.

So far, the research on the prevention of the peanut allergy is “without precedent,” according to the National Institute of Allergy and Infectious Diseases.

But allergy specialists also warn that peanut consumption in high-risk infants should only be done after medical assessment.

How it works

The research team, based on initial observations, found that Jewish children in Israel who started eating peanuts earlier, were 10 times less likely to develop the allergy than those in England.

In a clinical trial, 628 babies assessed as being prone to developing peanut allergy, were either given small weekly doses of peanut-based products, or avoided them.

Skin-prick tests were used to examine whether babies were sensitive to peanut extracts.

For every 100 children that avoided peanuts, 14 would develop the allergy by the age of five.

In contrast, only two out of every 100 children on the peanut diet became allergic.

Infants as young as four months old were tested until the age of five.

Dr. Gideon Lack, head of the research team, says that the study excluded infants who had already showed early strong signs of developed peanut allergy.

“The safety and effectiveness of early peanut consumption in this group remains unknown and requires further study,” said Lack in a statement.

“Parents of infants and young children with eczema or egg allergy should consult with an allergist, pediatrician, or their general practitioner prior to feeding them peanut products.”


Allergy specialists say the research in peanut allergy prevention is groundbreaking.

“This is transformational, it’s the first time it’s ever been done…Recent advances in research have shown that you can be desensitized once you have it. Up until now, there hasn’t been any research on how to prevent it,” says Dr. Lee Tak Hong, director of the Allergy Centre of the Hong Kong Sanatorium and Hospital.

For years, parents with allergic children have been told to avoid peanuts altogether.

In 2000, the American Academy of Pediatrics advised children to stay away, but later retracted their recommendations in 2008, stating insufficient evidence for early food avoidance.

Lee, who was not involved in the research, says the findings will have major implications on public health guidelines.

“The World Health Organization recommends that you avoid peanuts if you are allergic. Present results suggest the opposite…This means all the international guidelines would have to be revised,” says Lee.

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1 Comment

  • luvmykidz

    This theory is wrong.
    All four of my children consumed peanuts/peanut butter in fact in large amounts as small children right off the bat. Our youngest who is almost 13 became allergic overnight when she was 10 years old. She had no symptoms prior only issue was she could not get enough. Her pediatrician thinks that when our daughter’s body started to “change” her body chemistry did too. Very sad there is no substitute that we have found to satisfy her cravings for peanut butter.

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