Caffeine consumption has also been correlated to miscarriage rates, at least at higher levels of intake. A 2007 study of over 1,000 pregnant women found that women who reported consuming 200 mg or more of caffeine per day experienced a 25% miscarriage rate, compared to 13% among women who reported no caffeine consumption. 200 mg of caffeine is present in 10 oz (300 mL) of coffee or 25 oz (740 mL) of tea. This study controlled for pregnancy-associated nausea and vomiting (NVP or morning sickness): the increased miscarriage rate for heavy caffeine users was seen regardless of how NVP affected the women. About half of the miscarriages had already occurred at the time women were recruited for the study. A second 2007 study of approximately 2,400 pregnant women found that caffeine intake up to 200 mg per day was not associated with increased miscarriage rates (the study did not include women who drank more than 200 mg per day past early pregnancy). A prospective cohort study in 2009 showed no increased risk.

Dette er bare tull! For 2-3 år sida var det MASSE om dette i media, og koffein øker sjansen for abort betraktelig!
http://www.forskning.no/artikler/2008/januar/1200917092.84
http://www.vg.no/helse/artikkel.php?artid=508795
http://www.helsenett.no/index.php?option=com_content&view=article&id=6102&catid=129&Itemid=81
http://basicspregnancychildbirth.info/cs/miscarriage/a/aamisccaff.htm?-Koffein-%C3%B8ker-risikoen-for-spontanabort