But, ultimately, if it's utility they're after, caffeine lovers are better off sticking with Sparkling Lemon Lime (our favorite Celsius flavor) and leaving green apples for the autumnal baking season.

To my memory, it’s not very similar to their lemon lime energy drink, either—Celsius energy drinks are mostly sparkling, so maybe a little bit of fizz helps. I’m sorry, Celsius.

Celsius has taken the energy drink world by storm, but how do its caffeine-packed, fruit-filled flavors stack up? We sampled and ranked them all.

Sparkling Lemon Lime: C Well, that's not an especially appetizing color. But, again, it's an energy drink. Looking unnatural and vaguely extreme is a feature, not a bug.

I tried every Celsius energy-drink flavor I could find and ranked them from worst to best. My favorite had a subtle taste and smelled great.

Get hyped up for this awesome deal on all sorts of flavors of the crowd favorite Celsius energy drinks, on sale for Amazon Prime Day now.

Poppi also offers a variety pack that features Strawberry Lemon, Lime Ginger, Pineapple Mango, and Orange ($30 for 12).