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Diet Coke, (called Coca-Cola light in some countries), is a sugar-free soft drink produced and distributed by The Coca-Cola Company. Unveiled on July 8, 1982 and introduced in the United States on August 9,〔"(See First Use in Commerce, Trademark Application, US Patent & Trademark Office )."〕 it is the first new brand since 1886 to use the Coca-Cola trademark. The product quickly overtook the company's existing diet cola, Tab, in sales. Diet Coke was sweetened with aspartame, an artificial sweetener, after the sweetener became available in the United States in 1983; to save money, this was originally in a blend with saccharin. After Diet Rite cola advertised its 100 percent use of aspartame, and the manufacturer of NutraSweet (then G. D. Searle & Company) warned that the NutraSweet trademark would not be made available to a blend of sweeteners, Coca-Cola switched the formula to 100 percent NutraSweet. Diet Coke from fountain dispensers still contains some saccharin to extend shelf life. In other countries in which cyclamates are not banned (as they were in the US in 1970〔http://www.accessdata.fda.gov〕), Diet Coke or Coca-Cola light may be sweetened with a blend containing cyclamates, aspartame, and acesulfame potassium. In 2005, under pressure from retailer Walmart (which was impressed with the popularity of Splenda sweetener), the company released a new formulation called "Diet Coke sweetened with Splenda".〔"(Diet Coke Sweetened with Splenda )." The Coca-Cola Company. 2009. Web. February 9, 2010.〕 Sucralose and acesulfame potassium replace aspartame in this version. Early sales were weaker than anticipated; however, Coca-Cola did little advertising for the brand, investing money and advertising in Coca-Cola Zero instead. By late 2009, some distributors had stopped supplying Diet Coke sweetened with Splenda. Diet Coke does not use a modified form of the Coca-Cola recipe, but instead an entirely different formula. The controversial New Coke, introduced in 1985, used a version of the Diet Coke recipe that contained high fructose corn syrup and had a slightly different balance of ingredients. In 2004, Coca-Cola introduced Coca-Cola C2, which it claims tastes much closer to Coca-Cola but contains half the carbohydrates. In 2005, the company introduced Coca-Cola Zero, a sugar-free variation of regular Coca-Cola. When Tab was released in 1963, the Coca-Cola Company refused to release a diet soda with the Coca-Cola name, fearing that its flagship brand might suffer. Its rival Pepsi had no such qualms, and after the long-term success of its sugar-free Diet Pepsi (launched in 1964) became clear, Coca-Cola decided to launch a competing sugar-free brand under the Coca-Cola name, which could be marketed more easily than Tab. Diet Coke and Diet Pepsi have capitalized on the markets of people who require low sugar regimens, such as diabetics and people concerned with calorie intake. In the UK, a 330 ml can of Diet Coke contains around 1.3 kilocalories (5 kilojoules) compared to 142 kilocalories (595 kJ) for a regular can of Coca-Cola. ==Brand portfolio== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Diet Coke」の詳細全文を読む スポンサード リンク
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