Coke Zero and Diet Coke both purport to have zero sugar and calories, but what's the difference between them?

Add Yahoo as a preferred source to see more of our stories on Google. Diet Coke contains aspartame, which is 200 times sweeter than sugar. (Photo illustration: Yahoo News; photos: Graeme ...

Diet Cherry Coke is officially back on the menu. Here's when you can get it, and what other flavors are coming from Coca-Cola ...

For a brand that is perhaps more synonymous with American culture than any other, Diet Coke is devoid of pretty much anything. With zero calories and 46 milligrams of caffeine, the soda is much as ...

2026 is the year of fibermaxxing. So we tested Coca-Cola's fiber-enriched Diet Coke, a drink available only in Asia.

Coca-Cola has released a new Cherry Float soda -- here are the results of our taste test.