波士顿——意大利科学家发现，吃过多的面包会增加肾癌患病风险。该研究结果发表在《国际癌症杂志》上。
研究者共对2300多人进行了调查。结果发现，虽然仅有很少人每天吃多于五片以上的面包，但这却使他们患肾癌几率升高94％。研究者说，尽管患病风险提高很多，但由于肾癌并不是一种常见的疾病，故实际患病比率仍很小。
Dana-Farber癌症研究中心Charles Fuchs博士说，尽管我们研究着重在面包，但这说明吃过多淀粉食物是不健康的，不论是面包，意大利面还是大米。面包能使胰岛素提高，而胰岛素则促进肾癌细胞生长。此外过多面包还能提高胆固醇含量，从而增加心脏病和糖尿病风险。
也有一些人对本项研究提出了置疑。有人说：“我吃了很多肉和面包，但我已有三年没看过病。”还有人会说：“你如何吃没有面包的三明治？”
Fuchs博士解释说，我们提倡的是适量食用，并没有让大家摒弃面包，因为碳水化合物对人体健康是十分重要的。其它研究者则说，本项发现十分有趣，最初仅有肥胖和吸烟证明能提高肾癌风险。
http://www.thebostonchannel.com/asseenon5/10123140/detail.html
Study: Too Much Bread Linked To Cancer
Doctor Urges Carbohydrates In Moderation
POSTED: 4:20 pm EDT October 20, 2006
UPDATED: 5:54 pm EDT October 20, 2006
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BOSTON -- Too much bread could be bad for people's health, according to Italian researchers.
NewsCenter 5's Heather Unruh reported that researchers said eating too much bread could increase the risk of kidney cancer.
Italian researchers surveyed more than 2,300 people. Only a small group of them ate a lot of bread -- five slices a day. But those who did increased their risk of developing kidney cancer by 94 percent. Researchers said the increase may seem large, but in real numbers, the risk is very small.
"Kidney cancer, fortunately, is not the most common type of cancer," said Dr. Charles Fuchs of the Dana-Farber Cancer Institute.
But Fuchs said the risk is real.
"(Bread) drives up your insulin levels and, in theory, that insulin promotes the growth of cancer cells within the kidney," said Fuchs.
While the study focused on breads, Fuchs said it's not healthy to eat an excessive amount of starchy foods -- whether it's bread, pasta or rice.
"It pushes your cholesterol up, it promotes heart disease, it increases your risk of diabetes. And, as this study suggests, it increases the risk of cancer of the kidney," Fuchs said.
Some people said the research is hard to swallow.
"I didn't see a doctor for three years, and I eat a lot of meat, a lot of bread," one person said.
"How are you going to eat a sandwich without bread?" another person asked.
But Fuchs said people don't have to swear off all bread, just remember that the key is moderation.
"I do think that moderation, when it comes to carbohydrates, is an important health message," said Fuchs.
Other researchers said while the finding is interesting, it is preliminary and there are only two proven factors that increase the risk of kidney cancer -- obesity and smoking.
The study is in the International Journal of Cancer.
编辑：蓝色幻想
