Phytoestrogen Supplementation Improves Menopause Symptoms

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Phytoestrogen Supplementation Improves Menopause Symptoms
Phytoestrogen Supplementation Improves Menopause Symptoms

WEDNESDAY, June 22, 2016 (HealthDay News) -- Composite and specific phytoestrogen supplementation is associated with reductions in the frequency of hot flashes and vaginal dryness, according to a review published in the June 21 issue of the Journal of the American Medical Association.

Oscar H. Franco, M.D., Ph.D., from the Erasmus University Medical Center in Rotterdam, Netherlands, and colleagues conducted a systematic review to examine the correlation of plant-based therapies with menopausal symptoms. Data were included from 62 studies featuring 6,653 women.

The researchers found that phytoestrogen use correlated with a decrease in the number of daily hot flashes and vaginal dryness score, but not in the number of night sweats. Improvements in daily hot flashes and vaginal dryness score were seen with individual phytoestrogen interventions such as dietary and supplemental soy isoflavones. There was an overall decrease in the frequency of vasomotor symptoms with several herbal remedies, but not with Chinese medicinal herbs. Across studies there was considerable heterogeneity; 74 percent of the randomized clinical trials demonstrated a high risk of bias.

"Because of general suboptimal quality and the heterogeneous nature of the current evidence, further rigorous studies are needed to determine the association of plant-based and natural therapies with menopausal health," the authors write.

Several authors disclosed financial ties to biotechnology and nutrition companies, including Metagenics, which funded the study.

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