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Isoflavone concentrations (mg/kg of product) of common soybean-derived products
| Item (mg/kg) | Soybean meal | Soybean protein concentrate | Soybean protein isolate |
|---|---|---|---|
| Genistein | 1,147 | 52.6 | 573 |
| Daidzein | 808 | 57.8 | 308 |
| Glycitein | 161 | 15.7 | 85.4 |
| Total isoflavones | 2,096 | 115 | 911 |
Values obtained from the USDA Agricultural Research Service Nutrient Data Laboratory (USDA-ARS, 2016).
