BPA is Bisphenol A, 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 used in containers that store food and beverages, such as water bottles.   Epoxy resins are used to coat the inside of metal products, such as food cans, bottle tops, and water supply lines.   Some research has shown that BPA can seep into food or beverages from containers that are made with BPA.  Exposure to BPA is a concern because of possible negative health effects of BPA on the brain, behavior, and prostate gland of fetuses, infants, and children.   The FDA is reviewing BPA and has not yet produced a definitive conclusion on its safety; in the meantime, consumers have educated themselves about the potential negative health effects and are avoiding packages made with BPA.  More and more natural product packages are BPA Free and many packages display BPA Free icons or labels.