The following information is from Guarana.com. I have no idea if this is more addictive/dangerous than coffee, RedBull, Rockstar or anything else.
Richard
Dangers:
Theoretically, it is possible to overdose on caffeine or guarana. The fatal dose has been estimated at 10 grams of pure caffeine / guaranine (taken at once!). Guarana seeds contain maximal 10% caffeine, so when you would swallow at least 100 grams guarana seeds at once, things start to look ugly. Our advice: don't even think about it. To put all of this in perspective: the average cup of coffee contains 65-130 milligrams of caffeine; some very strong guarana-based syrups can contain up to 350 milligrams. Look at our caffeine chart for more info. People with cardiac problems or a high blood pressure should avoid Guarana (and smoking or drinking coffee, for that matter) When in doubt - consult your doctor. As with all stimulants, dependency may occur. Chemical composition of Guarana seeds:
Richard
Dangers:
Theoretically, it is possible to overdose on caffeine or guarana. The fatal dose has been estimated at 10 grams of pure caffeine / guaranine (taken at once!). Guarana seeds contain maximal 10% caffeine, so when you would swallow at least 100 grams guarana seeds at once, things start to look ugly. Our advice: don't even think about it.
To put all of this in perspective: the average cup of coffee contains 65-130 milligrams of caffeine; some very strong guarana-based syrups can contain up to 350 milligrams. Look at our caffeine chart for more info.
People with cardiac problems or a high blood pressure should avoid Guarana (and smoking or drinking coffee, for that matter) When in doubt - consult your doctor.
As with all stimulants, dependency may occur.
Chemical composition of Guarana seeds:
Vegetable fiber: 49.125 %
Reddish resin: 8.800 %
Starch: 8.350 %
Water: 7.650 %
Pectin, malic acid, mucilage, dextrin, salts: 7.470 %
Guarana-tannic acid: 5.902 %
Caffeine: 5.388 %
Yellowish steady oil: 2.950 %
Pyro-guarana acid: 2.750 %
Reddish colorant: 1.520 %
Amorphous substances: 0.606 %
Saponin: 0.060 %
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