Guarana seed is a potent South American energy food with numerous health benefits used traditionally as a natural energy source or stimulant. For thousands of years, native Amazonians have used the seed extract of the guarana berry to help maintain stamina and physical endurance.
Over the last 10 years Guaraná has become increasingly popular as a ‘herbal high’ or natural stimulant. Taking 1 gram of guarana seed powder orally will provide a clean hit of energy, mental clarity and gentle excitement that usually lasts between 2-4 hours.
Guarana also contains large amounts of theophylline, theobromine, and tannic acid, and is also rich in saponins. The fact that Guarana seed is fatty means that even ground into a powder, it is not readily water soluble. Therefore, the body does not quickly absorb it. The guaranine is released slowly!
Guarana powder can be mixed with fruit juice, punch or herbal tea. Daily oral intake should not exceed 3 grams. As with any caffeine-containing substance, too much can lead to insomnia, nervousness, anxiety, headaches, high blood pressure and heart palpitations. Guarana is not recommended for women who are pregnant or lactating or for long-term use.
See what Wikipedia says:
http://en.wikipedia.org/wiki/Guarana
