Nalgene Makes A B.P.A. free water bottle if you are worried about it. However there is somthing that should be obvious to everyone but knowone has brough it up. Water bottles are not the only product that uses plastic softened by BPA. So why do water bottles get the bad wrap? Anything you use for ingetiton that is plastic softened with bpa could potentially end up with bpa getting in your body. There may be a health risk by using water bottles, but if you do not drink water on the trail...YOU WILL DIE. Plus at home, with all the crap in tap water. I'de much rather drink bottled water and maybe get some BPA. BPA>arsinic+lead in my humble opinion. Also mettle bottles arent so great either. Mettle can midigate as well and cause its own health problems. You can taste somehting funky in water after its been in your nalgene in the sun, but you probably will taste something other then water if you drink out of a mettle bottle that has been in the sun. Is BPA good for you? Probably not. Should you be worried about it? I say life is too short, you got to drink and Your only other choice is mettle water bottles or BPA free ones, and they will probably find out that the compunds that they use instead of bpa to soften the plasic is also bad for you in 5-10 years.
/endrant