Ingredients / Caffeine & caffeine sources

Guarana

What it is

A seed from an Amazon vine. The seeds naturally contain caffeine, often cited at roughly two to four times the caffeine of a coffee bean by weight, along with small amounts of related compounds.

Why it is in energy drinks

Marketed as a "natural" energy source and as a way to add a slower-feeling caffeine.

Worth knowing

The caffeine in guarana is real caffeine. Some labels count it in the stated caffeine total and some add it on top, so check the can.

General information, not medical advice. We read what the label lists and don't test what an ingredient does.