Environmental estrogen is environment chemical which has effects of estrogen. In fact, environmental estrogen divides into five types, due to benefit for human body, one of the estrogen which is called phytoestrogen is paid more attention.
Phytoestrogen, such as Isoflavones which is similar to estradiol on structure, is benefit from people’s health. Food resource for isoflavones is from soybean and soy powder. Soy isoflavone has prevention effect on illnesses related to hormone.
A.Cancer
Soy isoflavone has remarkable control effect on emergence and development of breast cancer, prostate cancer, as well as other cancers. By comparative study, people who intake more bean products will have lower morbidity on cancer. Soybean also have obvious effect on breast cancer for premenopausal women.
B. Menopausal syndrome
Menopausal women usually face the conditions of hot flashes and vaginitis. These symptoms root in the decline of ovarian function. Soy phytoestrogen will be used for hormone replacement therapy, supply phytoestrogen and promote vaginal cell proliferation.
C. Cardiovascular disease
Menopausal women who intake 40g soybean everyday and last 6 months will have lower danger on cardiovascular disease due to middle and high level isoflavone contained in soybean. Other research shows that people who have high level cholesterol will decline 9% total cholesterol and 13% low density lipoprotein by taking in 47g soybean protein everyday. These effects may have relation to soy phytoestrogen.
D. Osteoporosis
Women who adopt hormone replacement therapy several years before clinical menopause can effective avoid osteoporosis at least at the age of 75. From animal experiments we have known soybean protein can promote bone formation. By reports from human subjects, we also know that soybean protein will increase bone mineral density in short term.
From ChinaSoy.com.cn and translated by BOHC