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We all know the risks of alcohol consumption during pregnancy. But did you know dads-to-be can cause problems with their drinking habits, too?

A new study found that fathers who drank within three months of conceiving were 44 percent more likely than those who didn’t to have a baby with congenital heart disease, compared with  16 percent of mothers who drank during that time. If dad had five or more drinks per session, that likelihood went even higher to 52 percent. Congenital heart disease is a heart abnormality that develops while baby is still in the womb.

The study, Parental alcohol consumption and the risk of congenital heart diseases in offspring: An updated systematic review and meta-analysis, was published yesterday in the European Journal of Preventive Cardiology.

While the study only shows a strong relation rather than a direct cause and effect, it’s likely best to simply not take the risk if you’re planning to get pregnant. The researchers behind the study suggest staying away from the stuff before conception for at least six months for dads-to-be, and one year for future moms, plus throughout the pregnancy.

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