A gut microbe that stops food allergies

August 25, 2014 7:02 PM

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A gut microbe that stops food allergies

A class of bacteria commonly found in the guts of people—and rodents—appears to keep mice safe from food allergies, a study suggests. The same bacteria are among those reduced by antibiotic use in early childhood. The research fits neatly into an emerging paradigm that helps explain a recent alarming increase in food allergies and other conditions, such as obesity and autoimmune disease, and hints at strategies to reverse the trend.

Food allergies have increased about 50% in children since 1997. There are various theories explaining why. One is that the 21st century lifestyle, which includes a diet very different from our ancestors’, lots of antibiotic use, and even a rise in cesarean section deliveries, has profoundly changed ...

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