Soybean isoflavones are flavonoids, a kind of secondary metabolites formed in soybean growth, and are a kind of bioactive substances. Because it is extracted from plants and has a similar structure with estrogen, soy isoflavones are also called phytoestrogens. Soybean isoflavone is a phytochemical, belongs to the plant flavonoids, mainly from the legumes of legumes, soybean content is higher.
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