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Evidence-Based Supplement Research

Evidence-Based Supplement Research

Coffee and Reduced Heart Rate

Doses used in studies

cups/day: 3–6 (median 4.5, IQR 3–6) — 1 study
g/day: 2.25 (median 2.25, IQR 2.25–2.25) — 1 study

Time to effect

Median: 9 days · IQR 6 days–11 days · Range 3 days–2 weeks — Reported in 2 of 2 studies

2 of 2 papersPopulation:

A meta-analysis and systematic review of randomized clinical trials on the effect of coffee consumption on heart rate.
- 2023-08-30
- Meta-Analysis · n = 485
- Nutrition reviews 82(8)
- - Shufen Han
  - Yue Qiu
  - Gus Q Zhang
  - Fuzhi Lian
  - Weiguo Zhang
- PubMed: 37647856
- DOI: 10.1093/nutrit/nuad110
1 Insight on
- Reduced Heart Rate
- High evidence
The overall pooled analysis showed that coffee consumption resulted in a negligible increase in resting HR of 0.40 beats per minute (95% CI: -0.78 to 1.57; P = 0.506), which was statistically insignificant.
Effect
Neutral
Effect size
Small
Significant
No
Dose
3 to 6 cups per day for 2 to 24 weeks
Acute Effect of Honey-sweetened Coffee on Blood Pressure, Heart Rate and Blood Glucose Level in Healthy Female Subjects.
- 2025-03
- RCT · n = 10
- Cardiovascular & hematological disorders drug targets 25(1)
- - Esther Oluwasola Aluko
  - Etiemem Emmanuel Effiong
  - Titilope Helen Olatunbosun
  - Grace Edet Bassey
- PubMed: 39757598
- DOI: 10.2174/011871529x348787241217103918
5 Insights on
- Reduced Heart Rate
- High evidence
- Adults
The results showed no significant changes in ... heart rate ... in the coffee and honey-sweetened coffee groups compared to the control group.
Effect
Neutral
Effect size
Small
Significant
No
Dose
20 mL in 250 mL hot water daily for 3 days (added to coffee)