Examples of Soy Isoflavones and Their Dietary Sources
                                
                                
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                                    2 min read                                
                            
                                The average isoflavone content in mature soybeans is 1–2 mg per gram of dry weight, making them an exceptionally rich dietary source. Soy isoflavones, which are a type of phytoestrogen, are compounds naturally found in soybeans and other legumes with a chemical structure similar to estrogen.