Pregnant women who eat nuts may boost child's risk of asthma

A new study found pregnant women who ate as little as one peanut butter sandwich a day raised the risk their child would develop asthma by 50 percent.

Researchers reporting in the American Journal of Respiratory and Critical Care Medicine say, if you eat moderately, it's probably not a problem, only if you eat nuts or nut products on a daily basis.

The study did not find a basis, but scientists say peanut allergens may be crossing the placenta and sensitizing a fetus, making a child more prone to the disease.