ATLANTA — The Coca-Cola Co. has launched Coca-Cola Life, its first Coke product to be sweetened with sugar and stevia. The product, which contains half the calories of a regular Coke, initially will roll out in Argentina, with plans to expand to other markets if it is successful.

Each 200-ml serving of Coca-Cola Life contains 36 calories, 9 grams of sugar and 15 mg of sodium and no total fat. By comparison, a 200-ml serving of Coca-Cola contains 84 calories, 22 grams of sugar and 12 mg of sodium.

“The Coca-Cola brand has always set the trend,” said Dino Troni, general manager of Coca-Cola in Argentina. “The big challenge was to innovate around the magic of our secret formula, making the first cola drink of Argentina, naturally sweetened with stevia sugar and low in calories and unique and delicious flavor.”

The Coca-Cola Co. uses stevia in more than 45 products sold in more than 15 countries, including beverages such as Vitaminwater Zero, Fanta Select and Sprite. By adding stevia to Sprite in the United Kingdom earlier this year, Coca-Cola was able to cut the product’s calorie count by 30%.