Adverse effects of phytoestrogens on reproductive health: a report of three cases.

Complement Ther Clin Pract

Division of Reproductive Endocrinology and Infertility, SUNY Downstate Medical Center, Kings County Hospital Center, 450 Clarkson Avenue, Brooklyn, NY 11203, USA.

Published: May 2008

AI Article Synopsis

  • Phytoestrogens, often believed to benefit women's health and lower cancer risks, may have harmful effects that haven't been fully investigated.
  • Three cases of abnormal uterine bleeding and related issues in women were linked to high soy product consumption, with symptoms improving after eliminating soy.
  • There is a need for more research to ensure the safety of phytoestrogens before they can be recommended as dietary supplements.

Article Abstract

Background: Phytoestrogens have been thought to have favorable effects on women's health and perhaps in offsetting cancers. The possible adverse effects of phytoestrogens have not been evaluated.

Cases: Abnormal uterine bleeding with endometrial pathology in three women was found to be related to a high intake of soy products. The first woman had postmenopausal bleeding with uterine polyp, proliferative endometrium and a growing leiomyoma. The second woman presented with severe dysmenorrhea, abnormal uterine bleeding, endometriosis and uterine leiomyoma not responding to treatment. The third woman with severe dysmenorrhea, abnormal uterine bleeding, endometriosis and uterine leiomyomata presented with secondary infertility. All three women improved after withdrawal of soy from their diet.

Conclusion: Additional information on phytoestrogens is necessary to ascertain their safety before they can be routinely used as supplements.

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Source
http://dx.doi.org/10.1016/j.ctcp.2008.01.002DOI Listing

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