A new diet version of Coca-Cola on sale in Hong Kong contains a chemical banned in the United States because of fears it might cause cancer, the soft-drink maker confirmed yesterday.
Swire Coca-Cola Hong Kong said it used the artificial sweetener sodium cyclamate in Coke Light, which last month replaced Diet Coke in local shops and vending machines.
But the company - and government food officials - insisted the drink was safe despite cyclamate having been outlawed in the US for more than 30 years after being linked to cancer in animals.
Cyclamate was popular in the 1950s for use in food and drinks for weight-watchers and diabetics.
But in 1969 a study was interpreted as showing it was a cancer-causing agent. The substance was subsequently banned by the US Food and Drug Administration, despite questions being raised about the validity of the original research findings.
Leone Leung Ting-on, for Swire Coca-Cola Hong Kong, refused to say how much cyclamate was in each can of Coke Light because the company's recipes were secret.