Black cohosh, a member of the buttercup family, has long been believed to help reduce symptoms associated with menopause, including hot flashes.
In the 12-month study, researchers randomly assigned 351 pero-menopausal and post-menopausal women to one of five intervention groups; black cohosh, multi-botanical supplement, multi-botanical supplement plus diet counseling, menopausal hormone therapy or a placebo.
Women were evaluated after three, six, and 12 months. Researchers report in the Annals of Internal Medicine that black cohosh reduced the occurrence of hot flashes by 0.6 episodes per day, a number researchers said was statistically insignificant.
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