When it was released in April 2009 , Naturally Zero was the first and only zero calorie sports drink sweetened with Truvia .
All Sport Naturally Zero was a zero calorie sports drink , sweetened with Truvia .
When it was released in April 2009 , sports drink   was the first and only zero calorie sports drink sweetened with Truvia .
All Sport Naturally Zero was a zero calorie sports drink , sweetened with Truvia .