Dangers of Nalgene water bottles and other plastic sport water bottles

Many Nalgene water bottles and other hard plastic sport water bottles are made of polycarbonate (#7 on the bottom) , which may leach Bisphenol A, an estrogen-like chemical. Canada is considering a ban of products containing Bisphenol A (BPA) and a new American study links it to breast cancer and early puberty, and is particularly concerned about the effect on babies. Others have raised concerns ab...