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2001 JUN 28- (NewsRx Network) -- Eager to reap the health benefits of soy without actually eating soy foods, Americans have turned to supplements -- products containing concentrated levels of natural compounds thought to be beneficial. While there is evidence to support benefits from eating whole soy foods, researchers at the University of Missouri-Columbia (MU) recommend caution in the use of supplements.
In a study in press with the journal Nutrition and Cancer, a group of MU researchers reports that a soy compound thought to provide cancer protection did not demonstrate this protection when fed to mice with breast cancer tumors. In fact, the compound, genistein, enhanced the growth of the tumors.
"Genistein is a phytoestrogen, a natural compound found in legumes such as soy that mimics the hormone estrogen," explained Ruth MacDonald, professor of food science and nutrition. "While many believe phytoestrogens are a safe alternative to prescription estrogens, there may be risks with consuming large amounts in supplements. We just don't have the data yet."
MacDonald said the interest in soy-derived compounds stems from evidence of cancer protection in people who ...
Source: HighBeam Research, Study Raises More Questions About Soy, Other Phytoestrogens.(some soy...