Australian Red Bull Study
The study team tested the cardiovascular systems of 30 young adults one hour before and one hour after consuming one 250ml can of sugar-free Red Bull.
Red Bull causes blood to become sticky, a pre-cursor to cardiovascular problems such as stroke. Within one hour after drinking Red Bull, your blood system becomes abnormal, as might be expected from a patient with cardiovascular disease, according to the researcher Scott Willoughby. Willoughby is the the lead researcher from the Cardiovascular Research Centre.
Red Bull is banned in Denmark, Norway, and Uruguay because of the many health risks listed on its cans, however, the company still sold 3.5 billion cans in 143 countries in 2007. .