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  1. Guarana - Wikipedia

    Guaraná has large leaves and clusters of flowers, and is best known for the seeds from its beans, which are about the size of a coffee bean.

  2. Guarana - Uses, Side Effects, and More - WebMD

    Learn more about Guarana uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Guarana.

  3. 12 Benefits of Guarana (Plus Side Effects) - Healthline

    Jun 13, 2018 · Guarana is often used as an ingredient in energy drinks, but it does more than energize. Here are 12 science-based benefits of guarana.

  4. Guarana Risks and Side Effects - Cleveland Clinic Health Essentials

    Jul 17, 2023 · Guarana is a climbing plant native to the Amazon. It’s particularly common in Brazil. Its red-orange berries are about the size of grapes and grow in clusters. When they open, the seeds …

  5. How Guarana Benefits Your Body and Brain - Verywell Health

    Dec 11, 2025 · Guarana may benefit your body and mind. It contains antioxidants and caffeine and is linked with heart health, improved memory, and anti-cancer properties.

  6. Guarana Uses, Side Effects & Warnings - Drugs.com

    Jul 24, 2025 · Although not all side effects are known, guarana is thought to be likely safe for most people when taken in amounts commonly found in foods. Products containing guarana are possibly …

  7. Is Guarana Safe? Health Benefits, Side Effects, and Recommended …

    Guarana (Paullinia cupana Kunth) is a caffeine-rich Amazonian plant traditionally used to enhance stamina, alleviate various ailments, and is widely consumed in energy beverages and supplements.

  8. Guarana: 5 Benefits and Side Effects To Know - Health

    Sep 6, 2025 · Guarana has powerful stimulating effects. Its products have been used for centuries to boost energy and alertness. Its seeds contain up to 8% caffeine, which crosses the blood-brain …

  9. Guarana: Health Benefits, Side Effects, Uses, Dose & Precautions - RxList

    Guarana is used for weight loss, to enhance athletic performance, as a stimulant, and to reduce mental and physical fatigue. It is a frequent addition to energy and weight loss products.

  10. Guarana | Amazon Rainforest, Caffeine Source, Stimulant | Britannica

    Guarana, (Paullinia cupana), woody, climbing plant, of the soapberry family (Sapindaceae), native to the Amazon Basin. It has a smooth, erect stem; large leaves with five oblong-oval leaflets; clusters of …