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Medicine

Population-Level Effects of Sugar-Sweetened Beverage Taxes on Obesity Rates

Quick fact

In Philadelphia, after a 1.5-cent-per-ounce tax on sugary drinks, student BMI (body mass index) dropped slightly over the following year, while comparable cities without the tax saw increases, suggesting a measurable population effect.

Why this is interesting

Cities and countries are taxing sugary drinks to fight obesity—but does it actually work? Surprisingly, the evidence is mixed and far from straightforward.