Guarana (Paullinia cupana Sapindaceae)

Other Names: Brazilian Cocoa, Zoom

Native to the Amazon River region, guarana is a woody climber with a furrowed stem. Its yellow flower inflorescences produce bright red fruits, each containing a single black seed surrounded by red fleshy skin.

Parts for Use

Seeds

1. Seeds are collected when ripe, baked, and the outer layer is removed.
2. They are ground in water to form a paste, shaped into bars, and dried.
3. Seeds can also be oven-dried or ground into powder for capsules.

Ingredients

Guarana contains a high percentage of caffeine, up to twice that of coffee, which stimulates the central nervous system and metabolism and acts as a mild diuretic. It also includes small amounts of theobromine (found in chocolate), theophylline, and larger amounts of starch. Tannins contribute to its bitter taste.

Use in Treatment

Guarana, traditionally used in South America, is valued for its stimulating effects due to high caffeine content, making it effective for nervous exhaustion. Its tannins help treat mild diarrhea. It is also believed to offer protection against malaria. Guarana supports fat metabolism, aiding in weight loss, as shown in a 2001 U.S. clinical trial where patients using guarana-based preparations lost more weight than those using placebos. It also reduces blood fat levels. Brazilian studies from 1988 indicated that guarana reduces blood clotting, suggesting potential for thrombosis treatment. In 1997, experiments on mice showed guarana enhanced strength, endurance, and memory, though these effects have not been replicated in humans.

Cultivation

Originating from the Amazon rainforest, guarana requires warm, humid, and shady conditions and does not tolerate temperatures below 18°C.

Preparation and Dosage

For Internal Use

Nervous Exhaustion

1. Capsules (200 mg): Take two to three capsules daily.

Overweight

1. Capsules (200 mg): Take two to four capsules daily.

Mild Diarrhea

1. Powder: Add two teaspoons to 250 ml of boiling water, steep for 15 minutes, and drink two to three cups daily.

Warnings

1. Consult a healthcare professional before use.
2. Do not use during pregnancy or breastfeeding.
3. Avoid if you have cardiovascular disease or high blood pressure.
4. Guarana may cause rapid heartbeat, stomach upset, or insomnia.
5. Avoid excessive or prolonged use.
6. Consult a doctor if taking anticoagulants.