Guarana comes from the Amazon basin, and has been used by the natives of the Amazon rain forest to treat conditions such as diarrhea, arthritis, fatigue and even to reduce hunger. It is, in fact, a climbing plant of the Sapondacaea family, although it is the fruit for which it best known. Each contains a single seed that contains around five times the amount of caffeine of a similarly sized coffee bean.

An interesting piece of trivia is that the reason why such seeds are rich in caffeine is that the substance is poisonous to certain pathogens that would otherwise attack the berry. The same is - true of all seeds that contain caffeine: it is a means of self-defense. Obviously it is an effective defense since the berries appear to relatively immune to such common plant diseases.

Guarana is named after the Guarani tribe of South America, and the language is spoken by many in the area around Paraguay, Bolivia and Brazil, and also parts of Argentina. In fact over 67% of Paraguayans speak the language. There is a myth that when child of the Guarana village was killed by an evil god, a more benevolent deity planted the child's left eye in the forest and the right eye in the village. The left eye gave rise to the wild form of the plant, and the right eye the cultivated form.

This likely came about because of the appearance of the fruit when it is split open: it has the appearance of eyeballs. However, what is true is that Guaranis made tea from the seeds, and also a bread known as guarana bread by mashing the powder into a dough and shaping it into a cylindrical bread. It is dry roasted and milled to a fine powder, also known as Brazilian cocoa, but it has never quite managed to compete commercially against the coffee! However, it has its local adherents to whom it is a staple drink.

However, back to the health benefits of the seed. They were recognized as early as the 17th century when Father Felip Betendorf introduced it into Western civilization, but over the centuries since then it has been found that even in spite of the caffeine content it has been demonstrated to have brain-boosting properties and able to increase tasks requiring mental attention. It is certainly known to be an energizer, and able to give a boost to your brain when you really need it. So why should this be, and how does it do this?

The flavor is a bit like chocolate, hence its nickname of Brazilian cocoa, and has been approved by the FDA as a food additive. Extracts from the berry have been shown to possess strong antioxidant properties, and also act as bactericides and fungicide, few of which can be put down the caffeine content. In fact the seed has been proposed for use in the food industry as a natural antioxidant and preservative and as stated below, that is more acceptable to people than synthetic chemicals.

This is probably in response to the fact that synthetic