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The health benefits of coffee have been largely debated for years. While some past research has linked regular coffee consumption to a lower risk of death from any cause, concerns around caffeine continuously raise questions about whether too much coffee negatively impacts heart health. But now, coffee lovers have reason to rejoice. In a new scientific statement, the American Heart Association says that moderate caffeine consumption of up to 400 milligrams per day is safe for most adults.
The statement, “Caffeine and Cardiovascular Disease,” published in Circulation, reviewed the latest research on caffeine’s effects on cardiovascular health. As stated, 400 milligrams of caffeine—the rough equivalent to five eight-ounce cups of caffeinated coffee—is unlikely to cause harm in most individuals and may even be associated with a lower likelihood of developing cardiovascular-related conditions like heart disease, stroke, heart failure, atrial fibrillation, high blood pressure, and Type 2 diabetes.
"Caffeine’s cardiovascular risk has probably been overstated, and these findings are reassuring: for most adults, moderate coffee consumption appears safe and may even be associated with some heart health benefits," says Gregory Mishkel, MD, Cardiologist and Physician Executive of the Endeavor Health Cardiovascular Institute. "But caffeine is not one-size-fits-all—if it triggers palpitations, raises your blood pressure, or disrupts your sleep, that is your body telling you to cut back. As with most things in life, moderation remains the best strategy."
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Moderation is the best approach indeed, and with the findings come a few important caveats. First, the American Heart Association's recommendation refers to five standard eight-ounce cups of coffee, not five large-sized beverages from the coffee shop. Next, added ingredients like sugar, flavored syrups, and heavy cream can also undermine coffee's potential health benefits, turning it into a high-calorie and sugar-loaded drink that may work against your health goals.
Additionally, consuming higher amounts of caffeine, especially from concentrated sources like energy drinks and energy shots, may cause cardiovascular harm, potentially increasing the risk of high blood pressure and arrhythmias. So while your morning coffees can likely be marked safe, your pre-workout energy drink habit may be worth taking another look at.
"Individual tolerance also still matters. Caffeine can provoke palpitations, temporarily raise blood pressure, worsen anxiety, and disrupt sleep," Mishkel adds.
Overall, more research is still needed to understand how different caffeine sources affect the body and why some people respond differently than others.
Experts
- Gregory Mishkel, MD, Cardiologist and Physician Executive of the Endeavor Health Cardiovascular Institute
Sources
- Caffeine and Cardiovascular Disease: A Scientific Statement From the American Heart Association, Circulation
- Coffee consumption and all-cause and cause-specific mortality: a meta-analysis by potential modifiers, European Journal of Epidemiology
