American Heart Association links energy drinks to cardiac events in young adults
An American Heart Association analysis of FDA reports finds that nearly half of serious cardiac incidents involving energy drinks or pre-workout supplements occurred in adults aged 18-34.
An analysis by the American Heart Association of Food and Drug Administration cardiovascular event reports from 2017 to 2025 found that 45 percent of incidents tied to caffeinated energy drinks or pre-workout supplements involved cardiac arrest or heart attacks, primarily affecting adults between 18 and 34 years old. Federal health guidance advises healthy adults to limit caffeine intake to 400 milligrams per day, roughly the amount in four or five eight-ounce cups of coffee, while many energy drinks contain 150-300 milligrams per can.
Excessive caffeine can raise blood pressure, increase heart rate and act as a diuretic, potentially leading to dehydration. Younger adults are more likely to consume these products regularly and may exceed safe limits without realizing it, according to medical experts.
"We ask them, you know, routinely about energy drink utilization. How much do you drink? Do you use any of the energy drinks? Do you drink coffee? How much coffee do you do?" said Dr. Abdul Saadi, an interventional cardiologist at Orlando Health in Brandon.
Dr. Saadi added that large epidemiological reviews provide a starting point for identifying health patterns in younger populations and can generate hypotheses for more focused research.
While the data shows a statistical association, cardiologists note that current literature does not prove a direct causal link between energy drinks and heart damage. The exact caffeine threshold at which cardiovascular risk becomes life-threatening remains undetermined.
The American Heart Association will present the full findings at an academic conference in Chicago, and physicians continue to monitor patients with rapid heartbeats while urging the public to track total daily caffeine consumption.