Diet Pepsi actually contains less caffeine than Diet Coke, with a 12-ounce can of the former containing 35 milligrams of caffeine. A 12-ounce can of Diet Mountain Dew, on the other hand, contains ...

As devoted diet soda drinkers (we know, we know, we’re trying to cut back), we took it upon ourselves to taste each of the three new versions of Diet Pepsi: wild cherry, caffeine-free and ...

Aspartame will be removed from every Diet Pepsi brand, including the regular product, its caffeine-free alternative, and Diet Pepsi Cherry. “Diet cola drinkers in the US told us they wanted ...

For Diet Coke enthusiasts, the famous soda in the silver can delivers quite the punch of caffeine at 46 milligrams per 12 ounces, one of the highest levels among regularly available soft drinks.