据外媒报道，一项最新研究发现，包括白面包、米饭等高碳水化合物可能会增加肺癌风险。这些食物的血糖生成指数（GI）较高。
血糖生成指数（GI）是衡量碳水化合物质量的指标，依据饭后血糖升高水平来定义。目前理论是高GI饮食会提高血糖和胰岛素浓度，而体内称为类胰岛素生长因子（IGF）的荷尔蒙也随着升高。
研究人员梅尔科尼恩（Stephanie Melkonian）称，与每日饮食最低GI的人相较，每日最高GI饮食的人，患肺癌风险增加49%。
部分原文报道如下：
Many studies suggest carbohydrates are bad for your waistline.
But a new study has warned they may also be bad for your lungs.
Specifically, foods with a high glycemic index - such as white bread or bagels, corn flakes and puffed rice - may increase the risk of lung cancer, scientists say.
And non-smokers, who account for 12 per cent of those killed by the disease, appear to be particularly at risk.
原文链接：<http://www.dailymail.co.uk/health/article-3481226/Are-CARBS-new-cigarettes-White-bread-bagels-rice-increase-risk-lung-cancer-49-experts-warn.html>
日期：2016-03-09
