Americans drank 9 billion gallons of bottled water last year, or slightly more than 29 gallons for every man, woman, and child in the country.
They also spent $22 billion on a product that critics of the bottled water industry say they should be getting for free from their home faucets.
Most of the criticism has focused on the environmental impact of bottled water. But an investigation released two weeks ago also raises questions about the purity and even safety of commercially available water.
WebMD looked into many commonly asked questions and concerns about bottled water. Here is what they found.
