Ladattu 6.4.2009 Bisphenol A is found in most plastic food containers today. Not only is it found in plastic containers, but also in the lining of most cans. BPA is essentially a synthetic estrogen that enters the body when one consumes food or beverages out of plastic or plastic-lined containers. This is not only harmful to the male reproductive system, but has been found to also stimulate breast cancer growth in women. Knowing this, it should be of no surprise that the sperm count of the average Western male is on a steady decline as many males are becoming more and more feminine. What most people don't know is that Bisphenol A was actually considered as the form of estrogen to be used in estrogen pills going back to the 1930s.