|Manufacturer||The Coca-Cola Company|
|Country of origin||United States|
|Variants||Diet Coke Caffeine-Free, Diet Coke with Lemon, Diet Coke with Lime, Diet Raspberry Coke, Diet Black Cherry Vanilla Coke, Diet Coke Sweetened with Splenda, Diet Coke Plus|
Diet Coke, called Coca-Cola Light in some territories, is a sugar-free soft drink produced and distributed by The Coca-Cola Company. It was first introduced in the United States on August 9, 1982, as the first new brand since 1886 to use the Coca-Cola trademark. The product quickly overtook the soft drink Tab in sales.
Diet Coke was sweetened with aspartame 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 U.S. in 1970), Diet Coke or Coca-Cola Light may be sweetened with a blend containing cyclamates, aspartame, and acesulfame potassium.
In 2005, under pressure from retailer Wal-Mart (which was impressed with the popularity of Splenda sweetener), the company released a new formulation called "Diet Coke sweetened with Splenda". 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 calories (5 kilojoules) compared to 142 calories (595 kJ) for a regular can of Coca-Cola.
Brand portfolio 
|Diet Coke||1982||The first version of Coca-Cola without sugar.|
|Caffeine-Free Diet Coke||1983||The first version of caffeine free Diet Coke and the first extension of the Diet Coke formula.|
|Diet Cherry Coke/Diet Coke Cherry||1986||Available in U.S. and United Kingdom (as of 2007[update]).
Discontinued in Australia and Israel.
|Diet Coke with Lemon||2001||2005 in USA||Only available in Austria, Belgium, Brazil, Canada, Bosnia and Herzegovina, Germany, Hong Kong, The Netherlands, South Africa, Spain and Israel. The version sold in Continental Europe uses the Coca-Cola Light brand. Was available for a time in Australia.|
|Diet Vanilla Coke/Diet Coke Vanilla||2002||2005 in USA||Only available in Hong Kong, New Zealand (only 300mL and 600mL), Australia, Belgium, Canada and Bosnia and Herzegovina.|
|Diet Coke with Lime/Diet Coke Lime||2004||Available in the U.S., the U.K., Ireland, Finland, Sweden, Canada and Bosnia and Herzegovina. Was available for a time in Australia.|
|Diet Raspberry Coke||June 1, 2005||2006||Only Available in New Zealand, and Bosnia and Herzegovina|
|Diet Coke Sweetened with Splenda||2005||Sweetened with Splenda. Diet Coke with Splenda contains 2.83 mgs of caffeine per fluid ounce. The drink contains acesulfame potassium; aspartame was used previously as sweetener.|
|Diet Coke Black Cherry Vanilla||2006||2007||Only Available in USA and Bosnia and Herzegovina.|
|Coca-Cola Light Sango||2005||Only available in Belgium, France, Luxembourg, and Bosnia and Herzegovina|
|Diet Coke with Citrus Zest||2007||Only available in Bosnia and Herzegovina and in the United Kingdom.|
|Diet Coke Plus||2007||Available in many European countries, U.S and Brazil|
- In the United States and most English-speaking countries, it is called Diet Coke or Diet Coca-Cola.
- In most of continental Europe it is marketed as Coca-Cola Light, but informally referred to as Cola Light, and in Italy, France and elsewhere in French speaking Europe Coca Light.
- In French-speaking Canada, it is called Coca-Cola Diète or Coke-Diète.
- In Italy, the name Diet Coke was used between 1983 and 1991.
- In Mexico, Central, South America and most of the Caribbean it is called Coca-Cola Light. In Mexico, it was introduced as Diet Coke in 1984, but was renamed Coca-Cola Light in 1991.
- In Brazil, it is called Coca-Cola Light - Baixas Calorias. Introduced in 1985 as Coca-Cola Baixas Calorias, it was renamed Coca-Cola Light in 1988.
- In many English-influenced non-English markets (e.g., Israel), it is called Diet Coca-Cola.
- In Japan, it was launched in 1984 as Coca-Cola Light. In 1999 it was renamed Diet Coca-Cola, and since April 2007 has been called No Calorie Coca-Cola.
- In India, it is called Diet Coke.
- In Israel, it is called Diet Coca-Cola (דיאט קוקה-קולה), but is informally referred to as Diet Cola (דיאט קולה). A 2012 marketing campaign is attempting to rebrand the product as Diet Coke.
- In most of Southeast Asia, it is called Coca-Cola Light or Coke Light.
- In 2008, in Australia, it is called Diet Coca-Cola.
- As of 2009[update], Diet Coke supports The Heart Truth campaign, a national awareness campaign with a goal of better heart health for women.
- 1982 - Diet Coke is introduced, becoming the largest-selling low-calorie soft drink in America.
- 1986 - Diet Cherry Coke is introduced in American markets.
- 1994 - Diet Coke changes logo.
- 1999 - Diet Cherry Coke changes logo.
- 2001 - Diet Coke with Lemon is introduced.
- 2002 - Diet Vanilla Coke is introduced.
- Diet Coke and Diet Cherry Coke change logo.
- 2004 - Diet Coke with Lime is introduced.
- Diet Coke with Lemon changes logo.
- 2005 - Diet Coke sweetened with Splenda is introduced.
- Diet Cherry Coke and Diet Vanilla Coke change logos and are renamed.
- 2006 - Diet Coke Black Cherry Vanilla is introduced.
- Diet Coke with Lemon and Diet Coke Vanilla are discontinued.
- 2007 - Diet Coke Plus is introduced.
- Diet Coke Black Cherry Vanilla is discontinued.
- Diet Coke and its 6 flavors changes logo.
- 2011 - Diet Coke surpasses Pepsi in sales for the first time to become the second most popular soda in the United States after Coca-Cola.
Advertising slogans 
- "Just for the taste of it!" (US 1982)
- "The one of a kind" (US 1984)
- "Just for the taste of it!" (US 1986)
- "Taste it all!" (US 1993)
- "This Is Refreshment" (US 1994)
- "Just for the taste of it!" (US 1995)
- "You are what you drink" (US 1998)
- "Get the taste of it" (US 2000)
- "Live Your Life" (US 2001)
- "Do what feels good" (US 2002)
- "It's a Diet Coke thing" (US 2004)
- "Life is how you take it" (US 2005)
- "Light it up!" (US 2006)
- "Yours" (US 2007)
- "Enjoyment" (US 2007)
- "What life should be like." (US 2008]
- "Just for the taste of it" (US 2009 3
- "Hello You..." (UK 2009)
- "I light it" (Spain 2010)
- "Stay Extraordinary" (US 2010-present)
- "Love it heavy" (UK 2010)
Debate over health issues 
The most commonly distributed version of Diet Coke (and majority of beverages using artificial sweeteners) relies on aspartame, which has been suggested to pose a health concern. Aspartame is one of the most intensively scrutinized food additives. See also soft drink controversy and health concerns.
Coca-Cola has now released Diet Coke sweetened with sucralose (also known as Splenda), although it is not as common.
The sodium benzoate was found to break down mitochondrial DNA in living yeast cells. Research published in 2007 for the British government's Food Standards Agency suggests that sodium benzoate (E211) is linked to hyperactive behavior and decreased intelligence in children. In January 2008 sodium benzoate was removed from production lines for Diet Coke sold in the UK, however it remains in other Coke products and other production locations.
- "See First Use in Commerce, Trademark Application, US Patent & Trademark Office."
- Coke Beginning Aspartame Use, New York Times, p. D4, August 18, 1983
- Ordoñez, Franco. "Suit Alleges Deceit in Fountain Diet Cola Drinks". Boston Globe, March 3, 2005. Accessed August 26, 2008.
- Newton, David E (2009-01-01). Food Chemistry. pp. 73–77. ISBN 9781438109756.
- "Diet Coke Sweetened with Splenda." The Coca-Cola Company. 2009. Web. 9 Feb 2010.
- "Our Partners." Diet Coke. The Coca-Cola Company, Web. 9 Feb 2010.
- "The Diet Coke Story." Diet Coke. *2010 - The Coca-Cola Company, Web. 29 Jan 2010.
- "Cola Marketing History." Solar Navigator. 2008. Max Energy Limited, Web. 29 Jan 2010.
- "Top-10 CSD Companies and Brands for 2010". John Sicher, Editor & Publisher, Beverage Digest Company L.L.C. Retrieved 8 July 2011.
- Caution: Some soft drinks may seriously harm your health from The Independent
- Posch, Linda. "Food Additives, Hyperactivity & Autism Spectrum Disorders (ASD)." Leif Grunseth. 17 Oct. 2007. Web. 9 Feb 2010.
- Crowley, Laura (2008-05-27). "Sodium benzoate removed from Diet Coke". Retrieved 2010-05-28.