Do soda taxes work?

In 2014, Berkeley, California became the first city in the United States to pass a tax on sugar-sweetened beverages. The goal was to cut back on consumption—and eventually, to help chip away at rates of diseases like obesity and type 2 diabetes.

The tax, which tacks on one cent per fluid ounce on beverages with added caloric sweeteners—like sodas, energy drinks and sweetened fruit drinks—was officially implemented in March 2015.