The studies involved 5-year-old children. Those whose mothers had consumed up to eight alcoholic drinks per week during pregnancy did not have a higher risk of attention or IQ deficits than the children of women who did not drink during pregnancy, the researchers said.
However, eight drinks seemed to be the threshold: Nine or more drinks per week was associated with an increased risk of attention problems in children, the researchers said.
The most conservative advice remains, “Abstain from alcohol during pregnancy,” but small amounts may not present serious concern, the researchers said. However, they added that larger studies would be needed to confirm the results and to examine whether mental problems can arise when the children are older.