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Little Cognitive Benefit from Soy Supplements for Older Women

Posted: August 3, 2012 |   Comments

ScienceDaily (June 4, 2012) - In a new study of the effects of soy supplements for postmenopausal women, researchers at the Stanford University School of Medicine and the USC Keck School of Medicine found no significant differences -- positive or negative -- in overall mental abilities between those who took supplements and those who didn't.

While questions have swirled for years around a possible link between soy consumption and changes in cognition, this research offers no evidence to support such claims. "There were no large effects on overall cognition one way or another," said the study's lead author, Victor Henderson, MD, professor of health research and policy and of neurology and neurological sciences at Stanford.

The findings from the 2.5-year study in middle-aged and older women, which was larger and longer than any previous trials on soy use, appear in the June 5 issue of Neurology, the medical journal of the American Academy of Neurology. The results are in line with the largest previous study in this area: a 12-month trial of Dutch women during which daily soy intake showed "no significant effect on cognitive endpoints." That work was published in a 2004 issue of theJournal of the American Medical Association.

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