Phytoestrogens are chemicals found naturally in certain plants, including foods like whole grains, leafy greens, soya beans, and garlic. Scientific research shows that phytoestrogens can mimic the action of estrogen, a hormone that influences functioning in the female reproductive system. In alternative medicine, dietary supplements containing phytoestrogens are sometimes used to protect against hormone-dependent cancers (including some forms of breast cancer)depend on the dose of phytoestrogen consumption. make your habits to consume soya beans which is rich of phytoestrogen (like flavonoids, isoflavonoids and lignans)