Diet Coke
Diet Coke (called Coca-Cola Light in some countries) is a sugar-free and no-calorie soft drink produced and distributed by The Coca-Cola Company. It contains artificial sweeteners instead of sugar. Unveiled on July 8, 1982 and introduced in the United States on August 9, it was 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.
New Coke
Market analysts believed baby boomers were more likely to purchase diet drinks as they aged and remained health- and weight-conscious. Growth in the full-calorie segment would have to come from younger drinkers, who at that time favored Pepsi by even more overwhelming margins than the market as a whole. Meanwhile, the overall market for colas steadily declined in the early 1980s, as consumers increasingly purchased diet and non-cola soft drinks, many of which were sold by Coca-Cola themselves. This trend further eroded Coca-Cola's market share. When Roberto Goizueta became Coca-Cola CEO in 1980, he pointedly told employees there would be no "sacred cows" in how the company did business, including how it formulated its drinks.