Isoflavones may reduce chances of postmenopausal breast cancer
Women who took isoflavones for 5 years were 25% less likely to develop breast cancer
by Newsletter Editor
Isoflavones are plant based nutrients. In this review, doctors analyzed findings from several studies covering 3,101 postmenopausal women with breast cancer and compared them to 3,471 similar healthy women. The studies included low and high doses of isoflavones from soy, red clover, garlic, and evening primrose, together or separately.
Overall compared to placebo, women who took isoflavones for at least five years were 25 percent less likely to develop breast cancer. Women who took average doses lower than 25 mcg per day saw no benefit, while women who took at least 676 mcg per day had 28 percent lower chances of developing breast cancer, improving to 43 percent lower after five years. Isoflavones do not increase breast cancer chances and may help reduce postmenopausal breast cancer, doctors said.
International Journal of Cancer; 2013, Vol. 132, No. 6, 1439-50