Is Guinness really ‘good for you?’

Many decades ago, in Ireland, it would not have been uncommon for a doctor to advise pregnant and nursing women to drink Guinness. But today, experts (particularly in the United States) caution of the dangers associated with consuming any alcohol while pregnant.

“Alcohol is a teratogen, which is something that causes birth defects. It can cause damage to the fetal brain and other organ systems,” said Dr. Erin Tracy, an OB/GYN at Massachusetts General Hospital and Harvard Medical School assistant professor of obstetrics, gynecology and reproductive gynecology. “We don’t know of any safe dose of alcohol in pregnancy; hence we recommend abstaining entirely during this brief period of time in a woman’s life.”

What about beer for breastfeeding? “In Britain, they have it in the culture that drinking Guinness is good for nursing mothers,” said Karl Siebert, professor emeritus of the food science department and previous director of the brewing program at Cornell University.

Beer in general has been regarded as a galactagogue, or stimulant of lactation, for much of history. In fact, according to irishtimes.com, breastfeeding women in Ireland were once given a bottle of Guinness a day in maternity hospitals.

According to Domhnall Marnell, the Guinness ambassador, Guinness Original (also known as Guinness Extra Stout, depending on where it was sold) debuted in 1821, and for a time, it contained live yeast, which had a high iron content, so it was given to anemic individuals or nursing mothers then, before the effects of alcohol were fully understood.