Scott Willoughby, from the Cardiovascular Research Centre at the

Royal Adelaide Hospital, said the study showed "that normal people

develop symptoms normally associated with cardiovascular disease" after

drinking Red Bull.

The results were such that he would not drink Red Bull himself, he said.

Dr Willoughby tested the cardiovascular systems of 30 young adults -

Red Bull's target demographic - one hour before and one hour after

consuming one 250ml can of sugar-free Red Bull.

He said the results were striking: "One hour after they drank Red

Bull, (their cardiovascular systems) were no longer normal. They were

abnormal like we would expect in a patient with cardiovascular

disease."

Particular attention was paid to the various factors that result in

the formation of blood clots, Dr Willoughby said, including stickiness

of the blood and the proper functioning of the patient's blood vessels.