Why do certain beverages use a combination of sweeteners?
No single low-calorie sweetener can match the taste and functionality of table sugar (sucrose), but using a blend of low-calorie sweeteners can achieve a sweetness that’s very close. Using a blend of sweeteners can also reduce the amount of total sweetener needed to obtain a desired level of sweetness. That’s because many sweeteners are synergistic (that is, their sweetness in combination is greater than the sum of their sweetness if used separately). Using a blend can also improve product stability.