科學(xué)60秒:減肥新招

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Here in New York, the ___1___ state budget includes one ___2___ that’s probably making more news than the rest of the budget’s contents combined: a tax on nondiet soda and other high-calorie drinks. If the budget is passed by the legislature, sugary drinks would be ___3___ an extra penny-per-ounce excise tax. The idea is to both raise money for the state—an estimated billion dollars a year—and motivate people to consume less soda. But do higher costs really get people to eat more healthfully?
A study published in the March 8th ___4___ of the journal Archives of Internal Medicine says yes. Researchers tracked the eating habits and health of over 5,000 young adults for two decades. They found that a 10 percent increase in the price of soda was associated with a 7 percent decrease in soda calories consumed. ___5___
The higher tax is, of course, a political decision, not a scientific one. But the science does support the idea that such sin taxes accomplish their healthful intent.