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Int J Gynaecol Obstet. 2008 Jul;102(1):44-9. doi: 10.1016/j.ijgo.2008.01.028. Epub 2008 Apr 8.

Effect of intestinal production of equol on menopausal symptoms in women treated with soy isoflavones.

Author information

1
Department of Obstetrics and Gynecology, Taiwan Adventist Hospital, Taipei, Taiwan.

Abstract

OBJECTIVE:

To evaluate the effect of soy isoflavones on menopausal symptoms in women who do and who do not produce equol, a daidzein metabolite.

METHOD:

A randomized, double-blind, placebo-controlled clinical trial was conducted over 6 months with 96 healthy menopausal women. After taking take 135 mg of isoflavones daily for 1 week, the women in the study group were assigned to the equol-producing (EP) or the non-EP group according to the presence or absence of equol in their urine. Menopausal symptoms were evaluated using a modified Kupperman Index.

RESULT:

Compared with the placebo group, the scores for hot flashes and excessive sweating were significantly reduced after 3 months, and the scores for weakness, palpitations, limb paresthesia, and total symptoms after 6 months, in the EP group only.

CONCLUSIONS:

Isoflavone supplementation improves menopausal symptoms only in women with the ability to produce equol.

PMID:
18395723
DOI:
10.1016/j.ijgo.2008.01.028
[Indexed for MEDLINE]

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