Bisphenol A (BPA) is a chemical found in a wide range of food and drink packages, as well as in epoxy resins used to coat the inside of metal products, such as food cans, bottle tops and water supply lines. Dental sealants and composites, eyeglass lenses, household electronic and kitchen items, and some toys and sports equipment may also contain BPA.
Research has linked low-dose BPA exposure to cardiovascular problems, such as angina, heart attack, hypertension, coronary artery heart disease and peripheral artery disease. BPA may also trigger arrhythmias, atherosclerosis, and increased blood pressure. It can also cause male impotence, disrupt other hormonal systems and affect the brain.
On the basis of data evaluated by the US Federal Drug Administration measuring BPA in human urine, many countries have considered that exposure to the chemical is at very low, and therefore, safe levels. However, a more accurate way has been developed that accounts for BPA metabolites, which are created as the chemical passes through the human body. This method has found that exposure to BPA is far higher than previously assumed.
A 2019 study, published in The Lancet Diabetes & Endocrinology, proves that the measurements used by regulatory agencies are flawed, underestimating exposure levels by as much as 44 times. This study raises serious concerns about the safety of this chemical.