Gaurana:A preparation from the seeds of a woody climber of Brazil, used in making an astringent drink–This is the definition in one of the internet Lexicons
Now lets see some more things about this–
The Origin and the Nutritional value is much higher than we know about this one or may be we don’t know about Gaurana
Guarana is a climbing evergreen plant native to the Amazon region of South America (e.g. Brazil, Venezuela). It is said that it is commercially produced in the middle Amazon area of northern Brazil
Cooking and Nutritional Value:
The seeds which are prepared from the woody climber are pulverized, roasted, and then mixed withwater to form a paste and then it is put into cylinders and then finally it is dried up.The active constituent is the alkaloid caffeine together with some related alkaloids (Alkaloids means–The Natural things which has some presence of nitrogen in it which are in Plants).
It is used to flavour carbonated drinks like Cola,cordials(liquers) and confectionery.Because of its caffeine content, guarana acts as a stimulant, relieving physical and mental fatigue.
Warning to people from Medical World:There was also a Warning by the medical experts that Overdose of guarana may lead to many complication in the Body health
The proof from medical experts:
Guarana, because of its caffeine content, clearly acts as a stimulant. It has been claimed that it has a more sustained effect than tea or coffee, which may be related to the interaction of its caffeine with other substances present.Excessive intake of guarana leads to symptoms such as excitability, restlessness, increased diuresis, headache, and possibly tremor or palpitations(palpitations-A irregular heart beat)
Courtesy:Wordweb,Wikipedia