“…An advance in timing of onset of puberty has not been noted yet in other countries, although it is likely to become more prevalent as other countries adopt American lifestyle and diets (Parent et al, 2003). Precocious puberty has health and social implications, it is complex and influenced by multiple factors such as ethnicity, gender, nutrition, endocrine disrupting chemicals, pollutants and exogenous sex steroids (Aksglaede et al, 2006;Cesario & Hughes, 2007;Daxenberger et al, 2001). However, there is a key difference between US and the rest of the world, since they still allow the use of some hormonal drugs in food producing animals.…”