Plastic bottles of Diet Coke and Coca-Cola Cherry Zero Sugar on a supermarket shelf, with a promotion sign offering "Buy 2, Get 2 Free" on six-packs. - MDV Edwards/Shutterstock If you've ever taken a ...

If you've ever taken a sip of a zero sugar soda and expected diet soda flavor, or vice versa, you already know: Not all sugar-free sodas taste the same. The difference isn't in the calorie or sugar ...