Suggesting that the caffeine in guarana might make bleeding disorders Increased risk of miscarriage and other negative effects.Īnxiety : The caffeine in guarana might make feelings of anxiety worse.īleeding disorders : There is some evidence from animal research Harmful however, consuming more than 200 mg/day has been linked to an If you are pregnant or breast-feeding, guarana should be taken withĬaution due to the caffeine content. Special Precautions & Warnings: Pregnancy and breast-feeding: People who take guarana regularly mayĮxperience caffeine withdrawal symptoms if they reduce their usual Large guarana dosesĪgitation, ringing in the ears, pain when urinating, stomach cramps,Īnd irregular heartbeats. Tremors, delirium, diuresis, and other side effects. Vomiting, increased heart rate and blood pressure, rapid breathing, At typical doses, the caffeine in guarana can cause insomnia, nervousness and restlessness, stomach irritation, nausea, Sensitivity or smoking behavior, age, and prior caffeine use. However, serious poisoning can occur at doses lower thanġ50-200 mg per kilogram depending on an individual’s caffeine This is quite a high dose.Ĭonsider that one cup of brewed coffee provides from 95-200 mg ofĬaffeine. “typical” man weighs about 70 kilograms, so a lethal dose of caffeineįor this man would be 10,500-14,000 mg). The fatal dose ofĬaffeine is estimated to be 10-14 grams (150-200 mg per kilogram the But it is LIKELY UNSAFE and even deadly, due to its caffeineĬontent, when taken in high doses or long-term. Guarana Side Effects & Safety Guarana is LIKELY SAFE for most adults when used in typical food amounts or in medicinal amounts short-term. This product is not intended to diagnose, treat, cure or prevent any disease. *These statements have not been evaluated by the Food and Drug Administration.
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