The NYU researchers sequenced bacteria DNA samples from the throats of 12 healthy people, 12 with gastro-esophageal reflux disease (GERD) and 10 with Barrett's.

FORBES: Bleeding Edge

Soda is also associated with symptoms of gastro-esophageal reflux disease, when the contents of the stomach leak back up and cause a burning sensation in the esophagus.

CNN: Is drinking soda really that bad for you?