In every 100g soybean sample, there is 128mg isoflavone. The protein isolate produced by the traditional method contains 102mg of isoflavones, while soybean milk contains 9.65mg, because the water content of soybean milk is 93.27%, which is equivalent to more than 100g of isoflavones per 100g of dry matter. Tofu contains 27.74 mg isoflavones, and its dry matter contains more than 200 mg isoflavones. ?
Isoflavone is a weak phytoestrogen, and soybean is the only effective source of isoflavone for human beings. In the case of strong physiological activity of estrogen, isoflavones can play an anti-estrogen role and reduce the risk of estrogen-activated cancer, such as breast cancer. However, when the estrogen level of female menopause drops, isoflavones can play a substitute role to avoid the occurrence of menopausal symptoms such as hot flashes. ?
Isoflavones have outstanding anti-cancer properties, which can hinder the growth and spread of cancer cells, and only have an effect on cancer cells, but have no effect on normal cells. Isoflavone is also an effective antioxidant, which can prevent the generation of strong carcinogen oxygen free radicals. It can be seen that there are many ways and means for isoflavones to fight cancer.
After the hazards of estrogen replacement therapy for menopausal women were exposed, soybean (called soybean in China) became a natural medicine for menopausal women, which not only played the role of estrogen, but also did not cause cancer.
Soybean has high nutritional value, mainly containing 35% plant protein and about 20% healthy substances such as vegetable oil, starch, soybean lecithin, vitamin E, isoflavones and minerals, and containing less saturated fatty acids but no cholesterol. Soybean has the functions of preventing cardiovascular diseases, anticancer and anti-aging.
More importantly, soybeans contain natural phytoestrogens. Natural phytoestrogens in soybean mainly include isoflavones, phytosterols, saponins and lignans. When they are concentrated together, the effect is obvious and very mild, unlike the side effects of taking estrogen directly.
After menopause, women's ovaries atrophy, estrogen secretion is insufficient, and bone calcium is easily lost, leading to osteoporosis and coronary atherosclerosis, which leads to heart disease. For menopausal or postmenopausal women, taking enough phytoestrogens from plants can prevent various symptoms after menopause. According to research, orientals eat twice as much soybeans as westerners, so statistics show that the incidence of uterine cancer and heart disease of soybean lovers is relatively low, and these people, such as Japanese, have mild menopausal symptoms. Epidemiological survey shows that 25% of menopausal women in Japan have symptoms such as hot flashes and sweating, but in North America, the proportion of such women is as high as 85%. The World Health Organization compared the incidence of osteoporosis in postmenopausal women in Japan and Europe and America, and found that the incidence of osteoporosis and hip fracture in Japan was significantly lower than that in Europe and America.
According to research, a cup of soybean contains about 300 mg of isoflavones, and its pharmacological effect is equivalent to 0.4 mg of western medicine estrogen. Postmenopausal women eat soybean or soybean food containing 200 mg isoflavones every day, which can show the efficacy of estrogen and produce the following effects: the number of superficial vaginal cells increases and the secretion increases, offsetting the discomfort caused by postmenopausal vaginal atrophy and dryness. In addition, the study also found that phytoestrogens in soybeans can also prevent some cancers affected by hormones, such as breast cancer in women and prostate cancer in men.
How to ingest phytohormones from soybean? At present, there are high-purity soybean isoflavone health products extracted from soybeans in the west, but they are very simple for orientals, such as tofu, soybean milk, tofu, bean skin and so on. , often eat.