The active ingredient in the hugely successful Austrian product Red Bull is a solid jolt of caffeine, blended with a handful of other ingredients. One 8.3-ounce (0.25-liter) can has two to three ...

Whether present in natural sources or in Red Bull Energy Drink your body processes caffeine the same way. One of caffeine’s primary sites of action in the human body is a stimulating effect on ...

Whether present in natural sources or in Red Bull Energy Drink your body processes caffeine the same way. One of caffeine’s primary sites of action in the human body is a stimulating effect on ...

But when it’s good, it’s good. Red Bull can’t touch coffee as the world’s greatest caffeine-delivery mechanism, but its weird lore has given it a special place in the public imagination.

In comparison, a small Dunkin' Sparkd ... Each 8.4-ounce can of Red Bull contains 80 milligrams of caffeine and costs just ...