For instance, the authors of one study, expressed concerns that energy drinks may act as a gateway for illicit drug use. Other research indicates that having too many energy drinks may cause liver damage.
But is it safe to consume energy drinks in any quantity? From students pulling all-nighters to fitness enthusiasts, many people use these boosters, but a new study suggests that a single energy drink could immediately harm blood vessel function.
Mostly, however, researchers have been concerned about the impact of energy drinks on cardiovascular health. Reportedly, having more than two such drinks per day may endanger the heart.
Now, specialists from the McGovern Medical School at the University of Texas Health Science Center at Houston are preparing to present evidence that a single energy drink may have serious negative effects on blood vessel function.
Dr John Higgins and colleagues are due to present their findings next week at the American Heart Association’s (AHA) Scientific Sessions 2018, which will be held in Chicago, Illinois.
During the three-day summit, specialists will present the latest findings and advances related to cardiovascular health and care.
Blood vessel health severely impaired
The study included 44 young, healthy participants. All were medical students in their 20s who did not habitually smoke.
The researchers tested the participants’ endothelial (blood vessel) function at baseline, to establish how energy drinks would affect it.
The participants then each had a 24-ounce energy drink. Ninety minutes later, the researchers again performed the endothelial function tests.
At the 90-minute mark, the tests showed that the students had poorer artery flow-mediated dilation than they had before consuming the energy drinks.
Artery flow-mediated dilation indicates blood vessel health. At baseline, it was about 5.1 per cent in diameter, on average.
Following energy drink consumption, this measurement fell to 2.8 per cent in diameter. The researchers explain that this indicates acute impairment of blood vessel function.
The authors of the study speculate that the impairment of vascular function may result from a combination of substances typically used in energy drinks, including caffeine, taurine, sugar, and herbal stimulants.
Dr Higgins and his team explain that it is still unclear whether energy drinks are safe to consume, and in what quantities. They add, “As energy drinks are becoming more and more popular, it is important to study the effects of these drinks on those who frequently drink them and better determine what, if any, is a safe consumption pattern.”
Source: Medical News Today