咖啡是否是一种健康饮料？
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但是，饮用咖啡数量越多，好处越少。对于每天饮用6杯以上的人群，患病风险没有明显的下降。同时，在研究中，加上控制吸烟和饮酒，与完全不饮用咖啡的妇女相比，每天饮用1到5杯咖啡的妇女，无论是含咖啡因的还是脱去咖啡因的，她们因为各种原因导致的死亡风险可以降低15%到19%.
The findings, which appeared in May in The American Journal of Clinical Nutrition, suggest that antioxidants in coffee may dampen inflammation, reducing the risk of disorders related to it, like cardiovascular disease. Several compounds in coffee may contribute to its antioxidant capacity, including phenols, volatile aroma compounds and oxazoles that are efficiently absorbed.
调查结果刊登在5月份的美国临床营养学杂志上。报告表示，咖啡中的抗氧化剂可以抑制发炎，减少因发炎引起的其他疾病，比如心血管疾病。咖啡中的一些成分有助于咖啡的抗氧化能力，包括可以被有效吸收的苯酚、可挥发的芳香族化合物、唑。
In another analysis, published in July in the same journal, researchers found that a typical serving of coffee contains more antioxidants than typical servings of grape juice, blueberries, raspberries and oranges.
在该杂志7月出版的期刊上，研究人员的另一项研究中发现一份咖啡还有的抗氧化剂比一份葡萄汁、一份蓝莓汁、一份覆盆子汁和一份橙汁还要多。
"We were surprised to learn that coffee quantitatively is the major contributor of antioxidants in the diet both in Norway and in the U.S.A.," said Rune Blomhoff, the senior author of both studies and a professor of nutrition at the University of Oslo.
"我们都觉得很惊奇，在数量上，咖啡在美国和挪威的饮食中居然是主要的抗氧化剂的提供者，"两篇报道的高级作者奥斯陆大学的营养学教授茹·布洛莫说。
These same anti-inflammatory properties may explain why coffee appears to decrease the risk of alcohol-related cirrhosis and liver cancer. This effect was first observed in 1992. Recent studies,published in June in The Archives of Internal Medicine, confirmed the finding.
这些同样可以抑制发炎的物质可以解释为什么咖啡可以减少与酒精相关的硬化和肝癌了。这一效果实在1992年首先发现的。近来刊登在《内科学文献》期刊上的的研究结果证实了这一发现。
Still, some experts believe that coffee drinking, and particularly caffeine consumption, can have negative health consequences. A study published in January in The Journal of the American College of Cardiology, for example, suggests that the amount of caffeine in two cups of coffee significantly decreases blood flow to the heart, particularly during exercise at high altitude.
一些专家仍然相信喝咖啡，尤其是含有咖啡因的咖啡会造成不良的健康影响。比如说，刊登在1月份美国心脏病学会志上的一项研究结果认为，两杯咖啡中含有的咖啡因可以显著的减少流向心脏的血液，特别是在高纬度地区锻炼时。
Rob van Dam, a Harvard scientist and the lead author of The Journal of the American Medical Association review, acknowledged that caffeine could increase blood pressure and slightly increase levels of the amino acid homocysteine, possibly raising the risk for heart disease.
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| Tag: 咖啡 健康 饮料 |
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