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 ...

PepsiCo is discontinuing 14 Pepsi and Mountain Dew drinks, including Major Melon and Nitro Pepsi. Is your favorite on the list?

While most root beers (and their diet versions) are caffeine-free, Barq’s regular root beer contains caffeine — though its diet spin-off does not. Popular caffeine-free brands include Mug and A&W.

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.

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 ...