Energy drinks are beverages that boast the ability to provide the consumer with an increase in energy. Energy drinks frequently contain large amounts of caffeine. The upper daily recommended limits for an adult in regards to caffeine is XXX. Levels of caffeine can be up to 300mg per serving. A 6oz coffee contains 100mg. The caffeine from energy drinks is known to have a stimulating effect on the nervous system. Many brands of energy drinks contain additional chemicals including plant-based stimulants (guarana and yerba mate). The effect of these on the body is not well understood as there has been little research. Simple sugars such as glucose and fructose are also found in some energy drinks. Other potential ingredients include glucronolacteone (a naturally occurring metabolite), amino acids (taurine, carnitine and creatine), herbs (Ginko Biloba and ginseng) and vitamins.
In a research paper by Peacock and Bruno (2012a), patterns of use and motivations behind the consumption of AmED were examined. The focus of this investigation was to examine the motivation of participants to consume AmED through self-reporting techniques in the form of an online questionnaire. The sample of 400 participants aged 18-35 years who had reportedly consumed AmED in the past 6 months.