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This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
The Mediterranean diet is well known for its heart-healthy effects. It even sounds healthful: lots of fruits and veggies, whole grain and legumes. Plus olive oil, a bit of red wine. And fish and poultry instead of red meat.
Now a study from Italy confirms that, if you follow the diet, you really can cut your risk of cardiovascular disease. But here's the catch: the benefits seem to only occur if you're financially comfortable or well educated.
The finding is in the International Journal of Epidemiology.
Researchers tracked 19,000 men and women living in southern Italy during a four-year interval. After controlling for habits like smoking and exercise, the team found that volunteers who stuck more closely to the diet enjoyed greater protection against heart problems—but only if they were college-educated, or earned more than 40,000 euros a year, or about $47,000.
The scientists think that higher-income, educated individuals tend to prepare vegetables in healthier ways—perhaps preserving more vitamins and antioxidants. They also favored fish and whole grain bread, and ate more organic vegetables. And perhaps they're simply able to afford higher quality foods. Better olive oil, for example.
"You can buy the two-to three-euro bottle or you can have a 10-euro bottle." Study author Marialaura Bonaccio, an epidemiologist. "Probably these two products Probably these two bottles are different in their nutritional contents—in the context for example of polyphenols or other nutritional compounds."
Seems that the Mediterranean diet includes few foods that we consider rich. But to get the full benefits, it sure helps if you are.
Thanks for listening for Scientific American — 60-Second Science Science. I'm Christopher Intagliata.
参考译文
这里是科学美国人——60秒科学。我是克里斯托弗·因塔利亚塔。
地中海式饮食因有益于心脏健康而闻名。这种饮食听上去就很健康：大量水果和蔬菜，全谷物和豆类食物。还有橄榄油和一点儿红酒。吃鱼肉和家禽肉，不要吃红肉。
现在，意大利的一项研究证实，如果你遵循这种食谱，你患心血管疾病的风险的确会降低。但需要注意的是：似乎只有你经济富裕或受过良好教育，这种好处才会体现出来。
这项研究结果发表在《国际流行病学杂志》上。
研究人员对居住在意大利南部的1.9万名男女进行了为期四年的跟踪调查。在有效控制吸烟和锻炼等爱好的情况下，研究小组发现，那些严格遵循地中海饮食的志愿者在对抗心脏疾病时享有更强的保护，但前提是他们接受过大学教育或年收入超过4万欧元（约合4.7万美元）。
科学家认为，收入高、受过良好教育的人倾向于以更健康的方式烹调蔬菜，也许这种方式保留了更多的维生素和抗氧化剂。他们也喜欢鱼肉和全麦面包，也会多吃有机蔬菜。也许他们只是有能力买得起更高质量的食物。比如，更优质的橄榄油。
“你可以买两三欧元一瓶的橄榄油，也可以买10欧元一瓶的橄榄油。”该研究作者、流行病学家玛丽亚劳拉·伯纳西奥说道。“可能这两种产品在营养成分上有所不同，比如多酚或其它营养化合物。”
看起来地中海饮食很少有我们认为油腻的食物。不过如果你很富有，那它会帮助你得到全部益处。
谢谢大家收听科学美国人——60秒科学。我是克里斯托弗·因塔利亚塔。
译文为可可英语翻译，未经授权请勿转载！
重点讲解
重点讲解：
1. be known for 以…闻名的；
例句：He is known for taking a tough line on security.
他因在安全问题上采取强硬路线而闻名。
2. stick to 遵守，坚持；
例句：But one problem is that few people can stick to a diet for long.
但有一个问题是很少有人能长期坚持节食。
3. tend to do sth. 往往会；经常就；
例句：In our culture we tend to be bashful about our talents and skills.
在我们的文化中，我们往往羞于谈论自己的才干和技能。
4. be able to do sth. 可以…的，能够…的；
例句：If you need help at work, your Personnel Manager should be able to help.
如果你工作中需要帮助，人事经理应该能帮上忙。
