The chemical is bisphenol-A, or BPA, a synthetic estrogen better known for leaching into foods from plastics. While the the chemical and food industries continue to stand behind the safety of low-dose BPA exposure, many consumer and health advocates are worried enough by independent scientific studies to warn people to avoid exposure whenever possible.
Chemicals like BPA are known as “endocrine disruptors” because they mimic the body’s hormones; because hormones trigger biological responses at minute concentrations, the thinking goes, so might these synthetic cousins. Exposure to BPA has been linked, primarily in lab animal studies, to a range of possible health problems ranging from obesity to infertility.
If you must eat canned foods, try to get brands like Eden Foods that do not use BPA in can linings.