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托福听力练习-科学美国人60秒:食物彩色标签

2017-04-04 10:14:00来源：科学美国人60秒

点击查看>>科学美国人60秒音频：食物彩色标签

　　科学美国人60秒听力练习：食物彩色标签

　　科学美国人60秒英文文本

　　You might not know how many calories were in that sandwich. But if you got lunch at the Massachusetts General Hospital cafeteria, you could tell with one glance whether you'd made a healthful choice: offerings are color-coded.

　　Simply posting calories does not always get consumers to make healthier choices. So researchers tried something different.

　　Mass General's cafeteria food and beverage options were classified as least, somewhat or most healthful with red, yellow or green labels. Green is healthiest. Researchers then tracked some 4,600 employees.

　　About six months after the changes were made, the purchases of "red" label food decreased by more than 15 percent, and "red" beverages dropped by 39 percent. "Green" food and drink purchases increased, according to the study in the American Journal of Preventive Medicine.

　　Making healthy food choices easier could especially help the poor the undereducated, the very populations most affected by the obesity epidemic. Mass General employees from those groups made the biggest improvements.

　　中文翻译请点击下一页

本文关键字: 托福听力 科学美国人

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