Higher caffeine intake may prolong pregnancy, study finds

Expecting mothers have one more reason to ban coffee altogether from their diets after a Swedish study found that caffeine intake is linked to longer pregnancies and low birth weights in babies.

According to new research published in BioMed Central’s open access journal BMC Medicine, for every 100 mg of caffeine consumed a day, babies of average expected size -– 3.6 kg –- lost 21 to 28 g in weight among the 60,000 Norwegian women studied.