Drinking just one energy drink ‘can narrow your blood vessels’, experts warn

Cans of Red Bull Monster and Relentless energy drinks. Children in England are to be banned from buying energy drinks under Government plans

Having just ONE energy drink can narrow blood vessels in 90 minutes, study finds

Years of research has identified many serious health risks associated with energy drinks - liver damage, high blood pressure, erosion of the teeth and many more.

Even single energy drink could hurt blood vessel function, according to a new study. "A lot of young kids use energy drinks when they exercise, a time when you need your arterial function to be at its top", said lead researcher Dr. John Higgins.

For the study, the team looked at 44 students from the McGovern Medical School at UTHealth.

As a result, they found acute dysfunction of blood vessels after only one drink. This greatly hinders the blood flow and tissue oxygenation. "This could explain why there have been cases where kids have had a cardiac arrest after an energy drink", he said.

Drinking just one energy drink may have a detrimental effect on blood vessel function, according to a study to be presented at the American Heart Association's Scientific Sessions 2018 in Chicago. In addition, people under 18, women who are pregnant or breastfeeding, caffeine-sensitive individuals, those taking stimulants or caffeine-based drugs or those with heart disease should stay away from energy drinks, he added.

According to a new study, young, healthy men and women experienced notably diminished function soon after consuming a single regular 24 USA oz can - equivalent to almost three 250ml cans of Red Bull cans or one-and-a-half 500ml cans of Monster Energy. After consuming the energy drink, the blood vessel dilation was reduced, and experts revealed that it could restrict the blood flow and oxygen delivery. After 90 minutes, the internal diameter of blood vessels tested was dramatically smaller, on average, than before, the investigators found.

The researchers believe caffeine, taurine, sugar and herbal ingredients in energy drinks are bad for the endothelium - the lining of the blood vessels.

Researchers from the USAF Medical Centre at Travis Air Force Base in California said past year that people with high blood pressure, or heart conditions, might want to avoid the drinks. In the initial phase of the study, researchers conducted tests on their baseline endothelial function.

Most energy drinks contain high levels of sugar.

Taurine is an amino acid which is thought to increase energy.

Despite warnings that energy drinks still are among the most frequently used beverages in the United States and other developed countries.

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