Soy Infant Formula Is Not Estrogenic or Results in Reproductive Toxicity in Male Piglets

The current study directly compared the effects of soy formula feeding with those of estradiol or pure genistein in the neonatal piglet, an animal model which most closely resembles the human infant physiologically and in isoflavone metabolism Dutch Landrace Duroc piglets were fed with a diet with Soy, Sow, Milk, and Milk supplemented with estradiol or genistein, from postnatal day 2 to 21.