Energy and pre-workout products showed about 11 times more cardiac arrest reports than other products in federal safety data, with many cases in 18- to 34-year-olds.
Story Snapshot
- Researchers reviewed 28,345 Food and Drug Administration safety reports from 2017 to 2025.
- Products with caffeine or other stimulants had far more cardiac arrest mentions than non-stimulant products.
- About 45% of the stimulant-linked heart reports involved ages 18 to 34, a group seen as low risk.
- The signal also included more heart attacks and abnormal rhythms in stimulant-product reports.
What the new analysis actually found
Researchers at the American Heart Association examined 28,345 Food and Drug Administration adverse-event reports filed over eight years. Of these, 854 involved products with caffeine or other stimulants, including energy drinks, pre-workout powders, and caffeine pills, while 27,491 involved products without those ingredients. Cardiac arrest appeared about 11 times more often in the stimulant group than in the comparison group, a gap that stands out in safety monitoring data.
The same dataset showed higher mentions of heart attack and abnormal rhythms in stimulant-product reports. Media summaries placed the elevation at roughly fourfold for other heart problems and nearly fivefold for heart attack versus non-stimulant products, underscoring a broader pattern beyond a single diagnosis. The study team highlighted that many reports linked to stimulants came from young adults, which challenges the common view that serious heart events are mainly a midlife concern.
Why young adults should care right now
Adults aged 18 to 34 made up about 45% of the reports tying stimulant products to cardiovascular problems in this analysis. That’s where energy drinks sit in real life—right beside soda, bottled water, and sports drinks. The marketing says quick boost and focus. The data say proceed with care, especially if mixing products, pushing hard workouts, or using other stimulants. Conservative common sense fits here: know what you put in your body, read labels, and avoid stacking stimulants.
Peer-reviewed clinical literature adds context. A 2024 review described young adults who suffered out-of-hospital cardiac arrest shortly after energy-drink intake. The authors discussed a temporal link yet were careful about cause, which is the right standard in medicine. These reports do not prove that a can caused an arrest. They do show a pattern that deserves attention when the outcome can be fatal, even if rare.
What this study can and cannot tell
The researchers used a government adverse-event reporting system designed to spot safety signals, not to measure how often an event happens in the whole population. Reports can be incomplete, may come from patients or doctors, and may lack full medical records. The association here does not prove causation or tell us the risk for any one person. The authors and coverage made that clear, and that caution belongs alongside the signal they reported.
Even with those limits, the numbers matter. When a serious outcome appears far more often with stimulant products than with others, responsible people pay attention. That is how public health systems work: detect a potential problem, then test it with stronger studies. The path forward is simple and practical—verify the cases, separate energy drinks from other stimulant products, and study dose, combinations, and timing in young adults.
How to translate the signal into smart choices
Start with dose. Total caffeine can add up fast across an energy drink, a pre-workout scoop, and a large coffee. Additives such as taurine, guarana, yohimbine, or synephrine may compound effects on heart rate, blood pressure, and rhythm. Short-term studies show energy drinks can raise these measures, which may matter during intense exercise or when paired with dehydration or alcohol. If you have fainting, palpitations, or a family history of sudden death, talk to a clinician before using stimulants.
Energy drinks and stimulant-packed supplements may put young adults at greater risk for heart problems, including cardiac arrest, according to new research presented at the American Heart Association’s annual meeting. https://t.co/qIBnkEoVTk
— NBC News (@NBCNews) November 2, 2026
Adopt a tight personal rule set. Do not mix multiple stimulant products. Skip energy drinks before heavy workouts. Avoid pairing with alcohol or stimulant medications unless a doctor guides you. Read labels and look for total caffeine per can and per serving. If a product hides behind a “proprietary blend,” steer clear. That is not fear. That is stewardship—of your heart, your family, and your future. When the data flash a yellow light, responsible adults ease off the gas.
Sources:
newsroom.heart.org, pubmed.ncbi.nlm.nih.gov, nbcnews.com
