3Qs: Is soda losing its fizz?

Philadel­phia recently became the first major U.S. city to pass a soft drink tax, and a new report from Bev­erage Mar­keting Corp. found that bot­tled water will soon sur­pass soda as the nation’s most pop­ular bev­erage. Here, Janice Maras, research man­ager in the Depart­ment of Health Sci­ences, who spe­cial­izes in dietary data analysis, explains how a soda tax might affect dietary habits and what kind of long-​​term impact the declining pop­u­larity of soft drinks will have on the nation’s obe­sity epidemic.