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A 2019 systematic review found that intake of soy and soy isoflavones is associated with a lower risk of mortality from gastric, colorectal, breast and lung cancers. [74] The study found that an increase in isoflavone consumption by 10 mg per day was associated with a 7% decrease in risk from all cancers, and an increase in consumption of soy ...
Glycitein is an O-methylated isoflavone which accounts for 5-10% of the total isoflavones in soy food products. Glycitein is a phytoestrogen with weak estrogenic activity, comparable to that of the other soy isoflavones. [1] Glycitin (glycitein 7-O-glucoside) can be transformed to glycetein by human intestinal flora.
Glycitin (glycitein 7-O-glucoside) is an isoflavone found in soy, and remains to various degrees in soy products like tofu, soymilk [1] and soy sauce. [2] Although glycitin has its own health associated properties (below), it can be transformed to glycitein by human intestinal flora by the action of beta-glucosidases.
It is unclear if phytoestrogens have any effect on male physiology, with conflicting results about the potential effects of isoflavones originating from soy. [1] Some studies showed that isoflavone supplementation had a positive effect on sperm concentration, count, or motility, and increased ejaculate volume.
The consumption of isoflavones-rich food or dietary supplements is under preliminary research for its potential association with lower rates of postmenopausal cancer and osteoporosis in women. [1] [4] [13] Use of soy isoflavone dietary supplements may be associated with reduction of hot flashes in postmenopausal women.
Soy products. There are a bunch of different ways to add beans to your diet, including in soups, sauces, salads, and even smoothies. The best way to is to experiment with different recipes—you ...
Soy products decrease sperm quality due to the high content of a type of phytoestrogen called isoflavones. [16] [17] Theoretically, this exposure to high levels of phytoestrogen in men may alter the hypothalamic-pituitary-gonadal axis. A few studies on animals have shown that such a hormonal effect may be significant and decrease fertility. [18]
Daidzein can be found in food such as soybeans and soy products like tofu and textured vegetable protein. Soy isoflavones are a group of compounds found in and isolated from the soybean. Of note, total isoflavones in soybeans are—in general—37 percent daidzein, 57 percent genistein and 6 percent glycitein, according to USDA data. [5]