Some bottled water also has chlorine, but many do not. While some microscopic disease agents are becoming resistant to measures such as chlorination, the benefits still outweigh the risks by far. Fluoridated water is bad for you. The anti-fluoridation movement in the United States has been around since fluoridation of municipal water was first suggested. Some claim that Americans get too much fluoride from a variety of sources, and suffer significant health problems as a consequence.
Skeletal fluorosis is a very real condition caused by excessive fluoride intake.
However, it is also virtually unheard of even in areas where the natural fluoride levels in the water exceed limits normally set for fluoridation of municipal water. The lack of fluoride in bottled waters, as opposed to its presence in other water sources, has been an area of interest lately, as studies are showing an increase in cavities in children for the first time in 20 years. Some bottled water companies have begun to offer both fluoridated and unfluoridated versions of their water to reach consumers on both sides of the issue. Since most municipal water sources are fluoridated, this is a non-issue for most tap water drinkers. Bottled water is a good source of minerals.