Researchers at the Swedish Sahlgrenska Academy and the Norwegian Institute of Public Healthy have found that coffee and tea during pregnancy reduced the infants’ weight.
There were 59,123 pregnant Norwegian women who participated in the study. Only two cups of coffee per day increased the risk of a lower birth weight, but it’s not clear whether it was the caffeine that caused the lower weight. More studies are needed, said researcher Verena Sengpeil.
The study was published in BMC Medicine on February 19, 2013, under the title Maternal caffeine intake during pregnancy is associated with birth weight but not with gestational length: results from a large prospective observational cohort study.