Pepsi is a carbonated soft drink that was first introduced in the United States in 1898. It was created and developed by Caleb Bradham, who named the drink after the digestive enzyme pepsin and kola nuts, which were used as a source of caffeine. Pepsi is one of the largest soft drink brands in the world, and is widely available in more than 200 countries. The drink is known for its distinctive taste, which is slightly sweeter than its main rival, Coca-Cola. Pepsi offers a range of products under its brand, including original Pepsi, Diet Pepsi, Pepsi Max, and others. The company also offers a range of snack foods and beverages through its Frito-Lay division, including chips, crackers, and dips. In addition to its soft drink and snack food businesses, PepsiCo is involved in a number of other industries, including sports sponsorship and entertainment.