Results from a new multi-center clinical trial of 224 postmenopausal women -- conducted, in part, by researchers from Iowa State's Nutrition and Wellness Research Center -- questions the value of consuming soy isoflavone tablets to help lessen bone loss and minimize the effect of osteoporosis.
Released February 2, 2010
AMES, Iowa -- A previous six-month study by Iowa State University researchers had indicated that consuming modest amounts of soy protein, rich in isoflavones, lessened lumbar spine bone loss in midlife, perimenopausal women. But now an expanded three-year study by some of those same researchers does not show a bone-sparing effect in postmenopausal women who ingested soy isoflavone tablets, except for a modest effect at the femoral (hip) neck among those who took the highest dosage.
--continued on Iowa State University news
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