A new study from Emory University found young babies had fewer colds that didn't last as long when their mothers took DHA supplements while pregnant.
"Consuming 400 milligrams of DHA, which is an omega 3 fatty acid, during pregnancy reduced cold symptoms in the first month of life," says Emory's Dr. Usha Ramakrishnan.
The duration of colds was shortened by about a day for babies up to six months old.
DHA is also found in cold water fish like salmon, but researchers are convinced the beneficial effects of DHA they found were not because of fish intake.
Many prenatal vitamins have DHA, but the amount varies in each product.
Researchers say as much as 400-milligrams appears to be safe.
Doctors will continue to study the kids to see how long this effect might last.
The National Institutes of Health and the March of Dimes provided funding for this study.
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