A study out from the Harvard School of Public Health doesn’t resolve the controversy around the health effects of bisphenol A, but it does demonstrate that drinking from hard plastic bottles with BPA increases the amount of the chemical in people’s bodies. Some 77 Harvard students drank all cold beverages from stainless steel bottles for a week to get the BPA out of their bodies, the Boston Globe reports . Then they drank all cold beverages for a week from bottles made from BPA. Urine samples showed their BPA levels jumped during the second week. The study can be found on the Web site of the journal Environmental Health Perspectives. Some experts believe exposure to BPA interferes with baby’s development, and there’s been some noise about the chemical’s impact on diabetes, heart disease and liver toxicity in adults. About a year ago, Nalgene said it would stop using BPA in its water bottles, and Wal-Mart said

it would convert its entire stock of baby bottles to BPA-free products. More recently, the six largest manufacturers of baby bottles said they will end U.S. sales of bottles made with the BPA . The FDA has said that BPA isn’t a health hazard at current exposure levels , though it’s gotten some heat over the methods it used to make that decision. The agency told the Globe yesterday that its new chief scientist, Jesse Goodman, will “take a fresh look at this important issue from a scientific and policy position.” The American Chemistry Council told the Globe that the Harvard study shows that exposure to BPA from the bottles is “extremely low” and shows that “even exclusive use of polycarbonate bottles does not lead to unusually high levels of bisphenol A in the urine.” Photo: Getty Images

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Yes, Bisphenol A Does Enter the Body from Plastic Bottles