Does an energy drink cause a transient ischemic attack?

Energy drinks have become a popular beverage especially among young individuals. The growing literature sheds light on acute health problems associated with these products, although they have not yet been in existence long enough to build a solid, evidence-based appreciation of potential long-term effects. Perhaps the greatest concern about energy drinks is the amount of caffeine they contain, which generally far exceeds that in other beverages. A transient ischemic attack (TIA) has been traditionally defined as an episode of neurologic dysfunction caused by focal cerebral ischemia with complete recovery within 24 hours. We report a patient who had a TIA after intake of an energy drink without alcohol. To the best of our knowledge, the following case is the first report of TIA after intake of an energy drink.