Celsius was off my energy drink radar for a while ... let’s run through some other popular flavors and see how they stand up. Sparkling Strawberry Passionfruit: B Well, as an avowed hater ...

However, because Celsius energy drinks contain around 200 milligrams of caffeine, I spaced the test out over four days. Here's my ranking of the flavors I tried, from worst to best. The sparkling ...