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
Double Cola 2012 in five different flavors all with energy-boosting ingredients. The same year The Double Cola Company tapped into the ever-growing coconut water market with MINŌKU Coconut Water. MINŌKU Coconut Water is ethically sourced in Thailand and is sold nationally in the US. The Double Cola Company has plans to release their newest product ZILI Tea in the near future in five different flavors. The Double Cola Company website says, "ZILI Teas are all natural teas that harness the power of Mother Nature to hydrate, nourish, and satisfy." Double Cola was formerly available in a somewhat wider area of the South.