The concerns relate to an artificial brown colouring agent that the researchers say could be causing thousands of cancers.‘The caramel colouring used in Coca-Cola, Pepsi, and other foods is contaminated with two cancer-causing chemicals and should be banned,’said the Center for Science in the Public Interest (CSPI), a health lobby group based in Washington, DC.
位于美国华盛顿特区的公共利益科学中心（CSPI）认为在可乐中发现的焦糖色可以使数千人有致癌的风险，应当禁止使用。

This morning Coca-Cola rejected the CSPI’s concerns. A spokesman said: ‘Our beverages are completely safe. CSPI’s statement irresponsibly insinuates that the caramel used in our beverages is unsafe and  maliciously raises cancer concerns among consumers. This does a disservice to the very public for which CSPI purports to serve. Studies show that the caramel we use does not cause cancer.’
今早，可口可乐公司回应了公共利益科学中心（CSPI）的指责，一名发言人表示，“我们的饮料是绝对安全的。CSPI很不负责任地在声明中质疑我们饮料中所使用的焦糖色的安全性，并无端挑起消费者对癌症的担忧。CSPI一直宣称是服务于大众的非政府组织，但此举却是对公众的损害而非服务。研究表明，我们产品中使用的焦糖色不会导致癌症。”