“More studies are needed to assess the impact on heart rhythm, Sachin Shah, the lead author of the study said. He warned that patients with high blood pressure or long QT syndrome should use caution when consuming energy drinks.
With the new research, shares of Monster Beverage Corp (MNST.O) have fallen by as much as much as 8%. The company’s shares were trading down at $48.71 after the bell Thursday. They closed at $50.35 on Nasdaq.
Earlier this month, the company said its medical investigators found no connection between its product and the death of a teenage girl in Maryland, Reuters reports.
The girl’s parents sued Monster last year.
Last year, the energy drink company was cited in five different deaths.
Regarding this week’s research, Dr. Ian Riddick, director of preventive cardiology at the David Grant Medical Centre at Travis Air Force Base in California, said that “QT prolongation is associated with life threatening arrhythmias,” The Telegraph reports.
“The finding that energy drinks could prolong the QT (heart’s electrical cycle) in light of the reports of sudden cardiac health, warrants further investigation,” he said.
The research was presented at a conference run by the American Heart Association.