Ies have found that soy (in either isoflavones-rich protein or pure isoflavones supplements), can reduce menopausal hot flashes and increase bone density in women. Indeed, many menopausal and postmenopausal health problems may result from a lack of isoflavones in the typical american diet.Estrogens are essential for the female reproductive system, but they are also important for the bones, heart and possibly the brain. For women facing menopause (and the loss of estrogen), replacing estrogens is a major issue. Christine conrad, co-author with marcus laux, n.D. Of natural woman, natural menopause, relates that soy isoflavones and other plant estrogens are effective hormone replacements after a hysterectomy. Other researchers have reported the isoflavones are also estrogenic enough to promote bone formation.3 lower cholesterol and reduce heart disease riskin addition to their estrogenic activity, soy isoflavones promote healthy cholesterol levels without lowering levels of the beneficial hdl cholesterol. Also, soy isoflavones may maintain normal vascular function.