Caffeine and pre-workout supplements tied to heart attack risk, study finds

Key Points:

• New research from the American Heart Association links energy drinks and stimulant-containing supplements to increased risks of serious heart problems, including cardiac arrest and heart attacks, especially in young adults aged 18 to 34.
• Analysis of over 28,000 FDA reports found cardiac arrests were reported about 11 times more frequently with caffeine- and stimulant-containing products, while heart attacks and abnormal heart rhythms were reported 4.5 and 4 times more often, respectively.
• These products often contain high levels of caffeine, sometimes exceeding recommended daily limits, along with other stimulants like synephrine and yohimbine, which may interact unpredictably and increase cardiovascular risks.
• Experts advise individuals, particularly those with underlying heart conditions or family history of cardiac events, to monitor symptoms such as palpitations, chest pain, or fainting and seek medical help if they occur after consuming these products.
• The study is observational and preliminary, relying on voluntary FDA reports that may be incomplete; industry representatives emphasize that moderate caffeine intake is considered safe by regulatory agencies and caution against overinterpreting the findings.