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How useful guarana
A distinctive feature of the fruit of the guarana is a high caffeine content. Also they contain tannin, saponin, amide, zinc, sodium, manganese, magnesium, theobromine, theophylline, vitamins PP, E, B1, B2, and guaranine.
Caffeine, a part of the plant, slowly digested, therefore does not irritate the stomach wall and is gentle on the entire body. The berries of the guarana act as a powerful stimulant and it affects five times stronger than coffee. Thus, in contrast to this drink, they don't cause palpitations and nervousness.
Guarana tannins help to get rid of intestinal disorders, as guaranine has the same effect as theanine, present in tea.
First use started guarana Indians. She served them soothing, regenerative, tonic and invigorating agent. Later, this plant has gained immense popularity. Now it is used for the production of medicines and dietary supplements. With guarana is made of all sorts of energy drinks that perfectly quench thirst and give a huge energy boost.
What can harm the guarana
Excessive consumption of guarana can lead to deterioration of the heart and nervous system, can cause insomnia, high blood pressure, tachycardia and nervous agitation. Great caution with this herb should be exercised in elderly people, nursing and pregnant women and those suffering from atherosclerosis and hypertension.