Coca-Cola formula version of Coca-Cola syrup contains kola nut extract; originally included for its caffeine content, modern Coca-Cola uses caffeine citrate produced by the decaffeination of coffee. The primary taste of Coca-Cola is thought to come from vanilla and cinnamon, with trace amounts of essential oils, and spices such as nutmeg. A 2015 study identified and measured 58 aroma compounds in common colas, confirming significant amounts of compounds corresponding to cinnamon, vanilla, nutmeg, orange and lemon essential oils in Coca Cola. During the 1980s, most U.S. Coca-Cola bottlers switched their primary sweetening ingredient from cane sugar (sucrose) to the cheaper high-fructose corn
Coca-Cola in 1982, and began inserting Coke-product images into many of its films. After a few early successes during Coca-Cola's ownership, Columbia began to under-perform, and the studio was sold to Sony in 1989. Coca-Cola has gone through a number of different advertising slogans in its long history, including "The pause that refreshes", "I'd like to buy the world a Coke", and "Coke is it". In 2006, Coca-Cola introduced My Coke Rewards, a customer loyalty campaign where consumers earn points by entering codes from specially marked packages of Coca-Cola products into a website. These points can be redeemed for various prizes