Guaraná for Sports & Fitness

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Why Use


Why Do Athletes Use It?*

Some athletes say that guaraná helps improve stamina.

What Do the Advocates Say?*

Guaraná contains a substance similar to caffeine, which could be responsible for caffeine-like effects such as improving endurance performance. However, no research has directly tested guaraná in athletes.

*Athletes and fitness advocates may claim benefits for this supplement based on their personal or professional experience. These are individual opinions and testimonials that may or may not be supported by controlled clinical studies or published scientific articles.

Dosage & Side Effects


How Much Is Usually Taken by Athletes?

Some athletes take guaraná during their training; however, there is no scientific research to support this use.

Side Effects

As with any caffeinated product, guaraná may cause insomnia, trembling, anxiety, palpitations, and urinary frequency.1 Guaraná should be avoided during pregnancy and breast-feeding.

Interactions with Supplements, Foods, & Other Compounds

At the time of writing, there were no well-known supplement or food interactions with this supplement.

Interactions with Medicines

Certain medicines interact with this supplement.

Types of interactions: Beneficial Adverse Check

Replenish Depleted Nutrients

  • none

Reduce Side Effects

  • none

Support Medicine

  • none

Reduces Effectiveness

  • none

Potential Negative Interaction

  • none

Explanation Required

  • Caffeine

    Guaraná (Paullinia cupana) is a plant with a high caffeine content. Combining caffeine drug products and guaraná increases caffeine-induced side effects.

More Resources



See a list of books, periodicals, and other resources for this and related topics.