Summer sale: Save 58%

Eunice Zhang

In this March 16, 2017 photo, sugar tax stickers are posted by sweetened beverages at the IGA supermarket in the Port Richmond neighborhood of Philadelphia. Less than three months into Philadelphia's new tax on sweetened drinks, the stakes have escalated: Beverage makers say the measure is hurting sales so much they need to cut jobs, while city officials say the moves are a ploy to get the tax struck down. (AP Photo/Matt Rourke) (AP Photo/Matt Rourke)

Diet soda may be hurting your diet

Eunice Zhang