Fast food has become ubiquitous in the American diet, with over 25% of Americans eating fast food two or more times a week.
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However, a 14-year study published in the American Journal of Preventive Medicine shows menus haven't made much improvement in their nutritional quality.
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Investigators examined food trends and nutrition profiles of menus from eight popular fast food chains between the years of 1997 and 2010.
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Researchers evaluated the nutritional quality of the restaurants' offerings using the U. S. Department of Agriculture's Healthy Eating Index 100-point scale.
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第九十三篇: 快餐营养质量仍有待改善
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