Tag: Highest caffeine plant

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Discover What Plant is Highest in Caffeine: The Surprising Truth About Guarana

Oct 11, 2025 •

5 min read

Surprisingly, the highest concentration of caffeine in any known plant is found in the seeds of the Amazonian guarana plant, with levels up to 8% by dry weight. If you've been wondering what plant is highest in caffeine, this South American native holds the top spot, far surpassing coffee beans and tea leaves.