All living organisms need water to survive. Not only does water support essential physical functions, it also provides vital nutrients that the body does not produce on its own.While most people in the United States have access to clean drinking water, many people choose bottled mineral water for its perceived purity and potential health benefits.How does mineral water compare with regular water? Based on the current evidence, the differences are not very significant.Both types contain minerals and undergo some form of processing. However, by definition, mineral water must contain a certain amount of minerals, and the bottling process takes place at the source.