Coffee: What the research says about your daily caffeine intake

• GMHCN has gathered its recent coverage about some of the possible benefits of coffee.
• The American Heart Association (AHA) suggests that up to 5 cups of coffee per day could be safe for heart health for most people.
• Five cups of coffee per day could help reduce the risk of certain liver problems, such as cirrhosis, according to one study.
• Researchers of another study found that one cup of caffeinated coffee per day could help lower the risk of recurrent atrial fibrillation (AFib) episodes.

Around 66% of American adults drink coffee every day, according to the National Coffee Association.When consumed in moderation, coffee may offer a range of health benefits. In particular, recent research has explored the potential impact of coffee on heart and liver health.Findings suggest that coffee could help protect against conditions such as cirrhosis, liver cancer, and AFib.Read on to learn about some of the recent studies Medical News Today has covered and the insights researchers discovered about regularly drinking coffee.Up to 5 cups of coffee could protect against heart conditionsThe AHA recently published a scientific statement in Circulation. It suggests that 3 to 5 cups of coffee at 8 ounces (oz) per cup, or 400 milligrams (mg) of caffeine, per day is generally safe for most adults.Up to 5 cups of coffee could also help lower the risk of cardiovascular problems, such as:

• AFib
• coronary heart disease
• heart failure
• stroke

According to the statement, a “regular, brewed, nonspecialty” coffee contains around 9.4 to 20.6 mg of caffeine per fluid oz. Specialty coffees contain 7.9 to 15.8 mg of caffeine per fluid oz.The caffeine in decaffeinated coffee is around 0.25 mg per fluid oz.Nutrition expert Michelle Routhenstein, MS, RD, CDCES, CDN, preventive cardiology dietitian at EntirelyNourished spoke with MNT about the AHA’s statement.“I see it as evidence that, for most generally healthy adults, up to about 5 cups of filtered coffee per day can be compatible with cardiovascular health, but it’s not a recommendation or a target intake,” explained Routhenstein in a previous interview.Black or minimally sweetened coffee, particularly when consumed in moderation, appears to offer benefits that extend well beyond its caffeine content,” Claire Cohen, dipCNM, mBANT, rCNHC, nutritional therapist at Nat-Nut Nutritional Therapy, who had also spoken with MNT previously, added.“However, individual responses to coffee vary. Our genetics influence how quickly we metabolize caffeine, so while several cups may have little effect on one person, the same amount could raise blood pressure, trigger palpitations, or disrupt sleep in someone who metabolizes caffeine more slowly,” Cohen said.5+ cups of coffee could reduce cirrhosis, liver cancer risksA study published in Clinical Gastroenterology and Hepatology suggests that drinking 5 or more cups of coffee per day could help reduce the risk of developing certain liver problems.
 

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