Worries about the hormone-mimicking chemical bisphenol A (BPA) used in Nalgene plastic water containers have led a major Canadian retailer to remove Nalgene, along with other polycarbonate plastic containers, from store shelves in early December.

There is little dispute that the chemical can disrupt the hormonal system, but scientists disagree on whether the low doses found in food and beverage containers can cause harm. The FDA and the plastics industry have argued that BPA-based products do not pose a health risk.

However, an expert panel of researchers recently reported that the potential for BPA to affect human health is a concern, and more research is needed. Many Americans currently have higher levels of BPA than those found to cause harm in lab animals.

Sources:
Yahoo News December 23, 2007