Babies fed soy-based formula have changes in reproductive system tissues

Infants who consumed soy-based formula as newborns had differences in some reproductive-system cells and tissues, compared to those who used cow-milk formula or were breastfed, according to a new study. The researchers say the differences, measured in the months after birth, were subtle and not a cause for alarm, but reflect a need to further investigate the long-term effects of exposure to estrogen-like compounds found in soy-based formulas.