Does regular caffeinated coffee affect resting heart rate?

A recent meta-analysis and systematic review published in Nutrition Reviews by Shufen Han, Yue Qiu, Gus Q Zhang, Fuzhi Lian, and Weiguo Zhang investigated the impact of coffee consumption on resting heart rate (RHR) since resting heart rate is a critical indicator of overall health and morbidity.

What was the Study?

Their meta-analysis aimed to evaluate whether chronic coffee consumption influences resting HR.

So, to examine they undertook a meta-analysis of many randomized controlled trials (RCTs) assessing coffee consumption's effect on resting HR, published before March 2023, identified using databases such as PubMed, Web of Science and Cochrane Library.

Then, the data on study characteristics, coffee type and amount, and resting HR changes were extracted and reviewed including 485 individuals who were generally healthy, though some had conditions like hypertension, hypercholesterolemia, or were overweight. The trial duration ranged from 2 to 24 weeks.

What were the results of the Study?

The researchers concluded that coffee consumption led to a negligible increase in resting HR of 0.40 beats per minute, which was statistically insignificant. Consistent with the overall findings, no significant effects were observed across specified subgroups.

The findings from this meta-analysis suggest that consuming coffee daily does not significantly impact resting HR, indicating it is safe for most individuals from a cardiovascular standpoint.

Note: This information is intended to support, not replace, discussions with your doctor or healthcare professionals. Always consult with your healthcare provider for personalized medical advice and treatment plans.