Diet Coke is a sugar-free soft drink produced and distributed by The Coca-Cola Company . It was introduced in the United States on Independence Day in 1982 as the first new brand since 1886 to use the Coca-Cola trademark. The product quickly overtook Tab in sales. Its taste can be described as "crisp" and differs significantly from regular Coke. Diet coke.jpg 168Diet Coke 2 Liter MED.jpg