Energy drinks raise blood pressure and can lead to changes in heart rhythm .

Energy drinks are soft drinks with a high caffeine content - over 150 mg / l. They have a stimulating effect and contain at least one of the ingredients taurine, vitamins and other substances with nutritional or physiological effect such as glucuronolactone, inositol, carnitine, creatine, plant extracts (guarana, mate, acacia, ginseng, ginkgo biloba) and others.

In a new study, researchers analyzed data from the previous seven. They found that 93 of the volunteers consuming 2 cans of energy drinks had an irregular heartbeat. Systolic blood pressurepressure has risen 3.5 points above the normal limit. This may increase the risk of heart attack, arrhythmia or other cardiovascular problems.

It is not yet clear whether the caffeine content or some of the other components in energy drinks are the cause of the changes in heart rhythm or a combination of both.

Manufacturers of energy drinks refute these claims and explain that the amount of ingredients is in line with consumer safety and that the problem arises from excessive consumption or combining them with alcohol and opiates .

The results and conclusions of the study were presented at a meeting of the American Heart Association in New Orleans.