Red Bull (Krating Daeng)

Red Bull is an energy drink which originated in Thailand, developed by an Austrian Entrepreneur named Dietrich Mateschitz. Marketed as an energy drink "to combat mental and physical fatigue".

Anaerobic muscular endurance and work

A study conducted in 2007 on 15 healthy young adults, found that Red Bull consumption led to an acute increase in upper body anaerobic muscular endurance; however, no effect was found on either peak lower body anaerobic muscular work, or average lower body anaerobic muscular work.

Cardiovascular effects

The results of a study conducted in 2008 showed that the ingestion of one, 250mL can of sugar-free Red Bull, in a sample of 30 healthy young adults, had an immediate detrimental effect on both endothelial function, and normal blood coagulation. This temporarily raised the cardiovascular risk in these individuals to a level comparable to that of an individual with established coronary artery disease.

Based on their results, researchers involved with the study cautioned against the consumption of Red Bull in individuals under stress, in those with high blood pressure, or in anyone with established atherosclerotic disease.

Source: Wikipedia