Guarana

Guarana is an evergreen vind indigenous to the Amazon basin. Guarana has been used in connection with athletic performance, fatigue, weight loss and obesity. The indigenous people of the Amazon used Guarana to decrease fatigue as well as to reduce hunger. It is also know to stimulate the central nervous system and increase metabolic rate.

Guarana Extract. This supplement is derived from the seeds of Paullinia cupana. An herbal preparation from South America containing guarana extract demonstrated the ability to significantly delayed gastric emptying, reduced the time to perceived gastric fullness and induced significant weight loss over 45 days in a double-blind placebo-controlled parallel trial. Another randomized double blind trial examining the effect of a combination of Ma Huang and Guarana showed significant short term fat and weight loss.