Diet Coke
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 (replaced by "Coca-Cola Zero Sugar" in 2017), a sugar-free variation of regular Coca-Cola.
Diet Coke
In other countries in which cyclamates are not banned (as they were in the US in 1970), Diet Coke or Coca-Cola light may be sweetened with a blend containing cyclamates, aspartame, and acesulfame potassium.The most commonly distributed version of Diet Coke (and the majority of beverages that contain artificial sweeteners) relies on aspartame, which has been suggested to pose health concerns. Aspartame is one of the most intensively scrutinized food additives.