Researchers at the University of Oslo, in Norway, studied the use of herbal supplements by pregnant Norwegian women.

First, the details.

  • 600 women were interviewed within 5 days after delivery.
  • Medical birth charts were reviewed with respect to pregnancy outcome.

And, the results.

  • 40% of the women reported having used herbal drugs during pregnancy.
  • Most commonly…
    • Ginger
    • Iron-rich herbs
    • Echinacea
    • Cranberry
  • 86% of the women reported having used conventional drugs during pregnancy.
  • There were few potential interactions between herbals and conventional drugs.
  • There was a significant association between the following:
    • Use of iron-rich herbs during pregnancy and high birth weight
    • Use of raspberry leaves and caesarean delivery

The bottom line?

It’s a common practice to take herbals during pregnancy.

There also appears to be a connection between the use of certain supplements and pregnancy outcomes. This supports the importance for healthcare providers to monitoring the use of supplements by their pregnant patients.

7/25/11 19:19 JR

Hi, I’m JR

John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at, a complementary and alternative medicine website.