Iced versions of normal coffee such as frappuccinos contain so many calories that they increase people's chances of becoming overweight, the second biggest cause of cancer after smoking, according to the World Cancer Research Fund (WCRF).
A survey of iced coffees sold by high street chains Starbucks, Caffe Nero and Costa Coffee identified the worst culprit as the venti dark berry mocha frappuccino at Starbucks, which contains 561 calories. Even without whipped cream it still has 457 calories.
對商業連鎖店星巴克（Starbucks）、尼路咖啡（Caffe Nero）及咖世家咖啡（Costa Coffee）銷售的各種冰咖啡所做的一項調查確定，最嚴重的罪魁禍首是星巴克20盎司最大杯（venti）的黑莓糖漿摩卡星冰樂（dark berry mocha frappuccino），其含有561卡路里的熱量。即使不加攪打奶油也有457卡路里的熱量。
Health experts advise that a woman should consume about 2,000 calories and a man 2,500 calories per day to maintain a healthy weight.
"The fact that there is an iced coffee on the market with over a quarter of a woman's daily calorie allowance is alarming. This is the amount of calories you might expect to have in an evening meal, not in a drink," said Dr Rachel Thompson, science programme manager at the WCRF.
Having such drinks as an occasional treat is fine, she said.
"But if you are having them regularly then they will increase the chances of you becoming overweight, which in turn increases your risk of developing cancer, as well as other diseases such as heart disease and diabetes."