BPA stands for bisphenol-A. BPA is an industrial chemical that has been used to make certain plastics and resins since the 1960s.
BPA is found in polycarbonate plastics and epoxy resins. Polycarbonate plastics are often used in containers that store food and beverages, such as water bottles. They may also be used in other consumer goods. BPA has been linked to causing heart problems, liver tumors, and may spur the growth of prostate-cancer cells.
More and more BPA-free products have come to market because of these health risks linked to BPA. If a product isn't labeled, keep in mind that some, but not all, plastics marked with recycle codes 3 or 7 may be made with BPA. That might have you running to plastics advertised as "BPA-free," but there's growing evidence that those plastics could be just as bad for you as BPA-containing plastics.
Read more about these findings in this article: http://bit.ly/1iw5qub