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Signs of food allergies may be present at birth

Babies born with overactive immune cells more likely to develop life-threatening reactions

child eating yogurt

OVERREACTION  Allergies to dairy, eggs, nuts and other foods are on the rise, but the increase hasn’t been explained. New research suggests babies’ immune systems may be nudged toward developing allergies even before birth.

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By Tina Hesman Saey

- More than 2 years ago

Some babies are born with immune cells primed to cause food allergies, a new study suggests.