Coca-Cola launched Coke Zero in 2005 as a zero-calorie cola alternative to compete with Pepsi Max. Some key points: - Coke Zero contains 0 calories and is targeted at young adult males. It aims to taste similar to regular Coca-Cola. - It comes in variants like Cherry Coke Zero and Vanilla Coke Zero. - Compared to Diet Coke, Coke Zero contains slightly more caffeine and uses potassium citrate instead of citric acid. - Coca-Cola views Coke Zero as one of its most successful new product launches in 20 years, as it has helped the company appeal to health-conscious consumers and compete against other beverage brands.