Cinnamon and blood pressure
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Cinnamon Supplementation and Blood Pressure: Overview
Recent research has explored whether cinnamon supplementation can help lower blood pressure in adults, including those with hypertension, metabolic disorders, and type 2 diabetes. Multiple systematic reviews, meta-analyses, and clinical trials have examined this relationship, with most studies focusing on both systolic blood pressure (SBP) and diastolic blood pressure (DBP) Ghavami2020Hadi2020Mousavi2019+6 MORE.
Effects of Cinnamon on Systolic and Diastolic Blood Pressure
Several meta-analyses have found that cinnamon supplementation leads to modest but statistically significant reductions in both SBP and DBP. The average reduction in SBP ranges from about 2 to 6 mmHg, while DBP reductions are typically between 1 and 4 mmHg Hadi2020Mousavi2019Yazdanpanah2021+3 MORE. These effects are generally more pronounced with higher doses (up to 2 grams per day) and longer supplementation periods (at least 8 to 12 weeks) Hadi2020Mousavi2019Yazdanpanah2021.
Subgroup Findings: Dosage, Duration, and Population
The blood pressure-lowering effects of cinnamon appear to be stronger in certain groups:
- Higher Doses and Longer Duration: Studies show greater reductions in blood pressure when cinnamon is taken at doses of 1.5–2 grams per day for at least 8 weeks Ghavami2020Hadi2020Mousavi2019.
- Obese Individuals: Participants with a baseline BMI of 30 kg/m² or higher may experience more significant benefits .
- Younger Adults: Some evidence suggests that adults under 50 years old may see greater improvements in SBP .
- Type 2 Diabetes: Cinnamon supplementation has shown significant reductions in both SBP and DBP among people with type 2 diabetes, although some studies report less pronounced effects in those with diabetes or metabolic syndrome compared to the general population Yazdanpanah2021Akilen2013Jalali2020.
Clinical Trials and Real-World Impact
Randomized controlled trials in patients with stage 1 hypertension have found that cinnamon can moderately decrease ambulatory SBP and improve lipid profiles, suggesting a potential role as a complementary therapy . However, the overall clinical impact is considered moderate, and the reductions in blood pressure, while statistically significant, may not be large enough to replace standard antihypertensive medications Shirzad2020Akilen2013.
Mechanisms and Additional Health Effects
Cinnamon is thought to exert its blood pressure-lowering effects through antioxidant, anti-inflammatory, and insulin-sensitizing properties Zhang2024Mahmoodnia2017Preuss2006. Some studies also report improvements in cholesterol levels and markers of inflammation, which may further benefit cardiovascular health Zhang2024Shirzad2020Mahmoodnia2017.
Limitations and Recommendations
While the evidence supports a modest benefit of cinnamon supplementation for lowering blood pressure, most studies have small sample sizes and short durations. There is a need for larger, long-term trials, especially in people with diagnosed hypertension, to confirm these findings and determine optimal dosing Hadi2020Mousavi2019Yazdanpanah2021+2 MORE.
Conclusion
Cinnamon supplementation can modestly reduce both systolic and diastolic blood pressure, especially when taken at higher doses and for longer periods. The effects are more noticeable in certain populations, such as those with obesity or type 2 diabetes. While cinnamon may serve as a helpful complementary approach to blood pressure management, it should not replace standard medical treatments, and more research is needed to establish definitive recommendations.
Sources and full results
Most relevant research papers on this topic
Anti-hypertensive effects of cinnamon supplementation in adults: A systematic review and dose-response Meta-analysis of randomized controlled trials
Cinnamon supplementation significantly reduces both systolic and diastolic blood pressure in adults, making it a potential hypotensive supplement for hypertension management.
Effects of cinnamon supplementation on systolic and diastolic blood pressure: a systematic review and meta-analysis of randomized controlled clinical trials
Cinnamon supplementation significantly lowers systolic and diastolic blood pressure in adults, but may not be effective in individuals with diabetes, prediabetes, or metabolic syndrome.
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