Medical tests on three young Chinese girls less than four years of age, all of whom drank the same milk, showed female hormone levels that exceeded those of an average adult woman, with the hormones suspected to originate from livestock feed additives.

http://www.france24.com/en/20100809-china-milk-powder-blamed-baby-breasts
http://www.ndtv.com/article/world/baby-food-accused-of-causing-premature-breast-development-43088