FDA Reports Link Energy Drinks and Stimulants to Cardiac Arrest in Young Adults

Preliminary research presented at the American Heart Association’s Scientific Sessions 2026 indicates that caffeinated energy drinks and stimulant supplements are linked to a disproportionate number of serious cardiovascular events in FDA reports.

Study Findings

Researchers analyzed 28,345 adverse-event reports submitted to a U.S. Food and Drug Administration (FDA) safety database between 2017 and 2025. The analysis compared 854 reports involving caffeine- or stimulant-containing energy drinks and dietary supplements against 27,491 reports involving products without those ingredients.

According to the research, the findings include:

• Cardiac arrest was reported approximately 11 times more often in connection with caffeine- and stimulant-containing products compared to products without these ingredients.
• Reports involving these products were about 4.5 times more likely to include heart attacks.
• Reports were four times more likely to include ventricular arrhythmias or heart palpitations.
• Other reported issues included elevated heart rate (nearly 3 times more often), chest pain (2.71 times more often), and fainting (about 2 times more often).

Approximately 45% of the reports linking these products to cardiovascular events involved adults between the ages of 18 and 34.

Caffeine Concentrations and Regulation

While the American Heart Association (AHA) 2026 scientific statement on caffeine and cardiovascular disease states that consuming up to 400 mg of caffeine per day is "generally safe for most adults," some stimulant products contain significantly higher concentrations. Some energy drinks contain as much as 3 times more caffeine per fluid ounce than brewed coffee, and some pre-workout supplements contain more than 12 times as much caffeine per fluid ounce.

Because the FDA regulates energy drinks and stimulant supplements as foods or dietary supplements rather than medications, these products do not undergo the same premarket safety testing required for medications.

Research Limitations and Expert Commentary

The study authors emphasized that the analysis only identified associations between caffeinated products and cardiac events voluntarily self-reported to the FDA. The results do not prove that these products directly caused the reported heart conditions.

"Although there are biological reasons why that connection could be possible, the study does not prove that caffeine products cause these events, because other factors may have influenced the results found in this analysis," said Gregory M. Marcus, M.D., M.A.S., FAHA, who is the chair of the 2026 AHA scientific statement on caffeine and cardiovascular disease but was not involved in the study.

Researchers noted that the high frequency of reports among young adults may be due to frequent consumption, use before intense exercise, mixing with alcohol or drugs, or undiagnosed heart conditions.

Why it matters

Sales of caffeinated energy drinks have more than doubled over the past decade, reaching over $20 billion in 2024. Researchers suggest that more systematic safety monitoring of these products is needed and recommend that healthcare professionals ask younger patients experiencing palpitations, chest pain, or fainting about their consumption of these products.

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Sources

• newsroom.heart.org: Energy drinks, stimulant products linked to cardiac arrest, heart attack in young adults | American Heart Association
• newser.com: Energy Drinks Linked to Cardiac Risk in Young Adults
• keybiscayneportal.com: Energy drinks linked to serious heart issues in young adults | Health | keybiscayneportal.com
• healthandme.com: Energy Drinks Linked To More Heart Problems In Young Adults: Study Flags Cardiac Risks | Health and Me

This article was drafted with AI assistance and checked against the sources above. Company claims are reported as claims. Cover image is AI-generated.