Posted by Chantel M. Contributed by The American Society for Nutritional Sciences J. Nutr. 132:570S-573S, 2002
In a study of "Hormonal Effects of Soy in Premenopausal Women and Men" by Mindy S. Kurzer
Posted in The Journal of Nutrition, researcher found that the reported studies suggest that soy consumption exerts small effects on hormones in both men and premenopausal women. Although these effects are generally in a beneficial direction, their clinical significance is yet to be established. The largest observed effects have been reductions in urinary estrogens and estrogen metabolites in women. Future studies should focus on elucidating the responsible components and the optimal forms and doses as well as the dietary, environmental and genetic factors that influence particular subgroups to respond to soy. These factors may include ethnicity as well as individual phytoestrogen metabolism. Finally, it is of great importance to establish the clinical relevance of these small differences.