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Most Brew Dr kombucha flavors have under 15 mg of caffeine per 14 oz bottle, while the Uplift line has about 130 mg per bottle.

One 12 fl oz can of Celsius Peach Vibe contains 200 mg of caffeine, which is similar to a strong cup of coffee.

One tablespoon of unsweetened cocoa powder holds about 12 mg of caffeine, so a typical hot cocoa has far less caffeine than a cup of coffee.

OxyShred usually contains about 150 mg of caffeine per scoop, with other versions ranging from 0 to 275 mg per serving.

Oolong tea usually has about half the caffeine of brewed coffee per 8 ounce cup, though both vary with bean, leaf, and brew method.

One scoop of pre-workout usually has 150–300 mg of caffeine, with some labels ranging from 75 mg to over 400 mg per serving.

One 8-ounce cup of decaf coffee usually has 2–5 milligrams of caffeine, but some cups reach around 15 milligrams.

Ceremonial matcha usually delivers around 60–80 mg of caffeine per 2-gram serving, with exact levels set by leaf quality and how you whisk it.