Coke launching Vitaminwater Zero in 2010

Coca-Cola Co. will introduce Vitaminwater Zero, a no-calorie version of its Vitaminwater brand, early next year, the company announced Tuesday at an investor conference in Atlanta.

Vitaminwater Zero extends a fast-growing brand that Coca-Cola acquired in 2007 when it bought Glaceau, a Whitestone, N.Y.,-based beverage company.

The new version uses the sweetener Truvia. Zero will come in seven flavors and be offered in 20-ounce bottles.