Worried you’ll put your baby at risk of a peanut allergy by eating peanut butter during pregnancy? Here’s the truth.

Nearly two decades ago, Dr. Gideon Lack, professor of pediatric allergy at King’s College London, and his colleagues asked: Would giving infants peanuts protect them from developing peanut allergies?

In the late 1990s, scientists and physicians increasingly reported a little-known health threat: peanut allergies. Estimates from the time suggest that only 0.4% of children had a peanut allergy. But ...

A decade after a landmark study proved that feeding peanut products to young babies could prevent development of life-threatening allergies, new research finds the change has made a big difference in ...