The authors suggest that some of the most “lax regulatory requirements in the US”. They comment that the regulation of energy drinks, including the labelling of their contents and health warnings differ across countries. Many different brands are now marketed, and the researchers took a selection of these and reported their published caffeine content. The total US market for energy drinks was estimated to be $5.4 billion in 2006, the analysis shows an annual growth rate of between 47% and 55% per year.Ī source, referenced in the article, says that the annual consumption worldwide of these drinks is estimated to be 906 million gallons, with Thailand leading the world in consumption per person and the US leading the world in total volume of sales, i.e. It was marketed in the US in 1997 and consumption since then has grown “exponentially”. The authors give the background to Red Bull sales in the US, describing the introduction of the drink in Austria in 1987. Several aspects of caffeinated energy drinks and their consumption are discussed. In only one case did the manufacturer’s representative refuse to disclose the caffeine content and the data for this drink was sourced from an alternative website. This was a narrative review that included data about drink volumes and caffeine content sourced from the manufacturer’s product label, the product website or by asking the manufacturer representatives directly. It was published in the peer-reviewed medical journal: Drug and Alcohol Dependence. The study was supported by grants from the National Institute on Drug Abuse. The authors declare conflicts of interests in that they own stock in soft drinks companies. Reissig and colleagues from the Department of Psychiatry and Behavioral Sciences at the John Hopkins University School of Medicine in Baltimore, US, carried out this research. The problems of toxicity and dependence that can follow caffeinated drink consumption, as discussed by the authors, will need further investigation before there is any proposed change in regulation. This study did not measure the caffeine content of the drinks directly and did not investigate directly the effect of caffeine intake from these drinks on the body. The authors discuss the potential for caffeine dependence and withdrawal problems that could be associated with energy drinks. The study is a review of the history and regulatory background of caffeine-based energy drinks in the US, including some of the “top selling US energy drinks”, which are also marketed in the UK. Doctors have warned that these drinks should “carry health warnings”, so young people do not overdose on caffeine, says the newspaper. The newspaper reports on a study that looked at 28 energy drinks and showed some have up to 14 times the caffeine content of a can of cola. “Energy drinks ‘need caffeine alert on cans’”, is the headline in the Daily Mail.
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