New Research: Evening primrose oil.

Evening primrose oil (Oenothera biennis) is a commonly used alternative therapy and a rich source of omega-6 essential fatty acids. It is often used for several women’s health conditions, including menopausal and premenstrual symptoms. The current evidence suggests that oral evening primrose oil is likely ineffective for the treatment of premenstrual syndrome and the use of evening primrose oil during pregnancy is not supported in the literature and should be avoided.

Source: American Family Physician, Volume 80, Issue 12, pages 1405-1408, Decemeber 2009.