There are currently no recommended medical treatment options for threatened miscarriage. In a debate article, Australian authors discuss the physiological processes of early pregnancy loss, together with the possible benefits of providing supportive acupuncture care. Since acupuncture has demonstrated beneficial hormonal responses with decreased miscarriage rates in the context of fertility research, it may promote specific beneficial effects in early pregnancy and thus provide a much-needed therapeutic effect for women presenting with threatened miscarriage. (Acupuncture as a therapeutic treatment option for threatened miscarriage. BMC Complement Altern Med. 2012 Mar 22;12:20).

Too much caffeine during pregnancy may double the risk of miscarriage. In an American cohort study, 1,063 pregnant women were interviewed about their caffeine intake. An increasing dose of daily caffeine during pregnancy was associated with an increased risk of miscarriage, compared with no caffeine intake. Of 264 women who had consumed no caffeine, 12.5% had miscarriages. The miscarriage rate was 24.5% in the 164 women who consumed 200 mg (equivalent to less than two cups of brewed coffee or four cups of black tea) or more per day. (Maternal caffeine consumption during pregnancy and the risk of miscarriage: a prospective cohort study. Am J Obstet Gynecol. 2008 Mar;198(3):279.e1-8).