Cinnamon and hypertension
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Cinnamon Supplementation and Blood Pressure Reduction
Multiple systematic reviews and meta-analyses have found that cinnamon supplementation can lead to a modest but significant reduction in both systolic blood pressure (SBP) and diastolic blood pressure (DBP) in adults. The average reduction in SBP ranges from about 2 to 6 mmHg, and for DBP from about 1.5 to 4 mmHg, depending on the study and population analyzed Mousavi2019Yazdanpanah2021Hadi2020+1 MORE. These effects are generally more pronounced with lower doses (≤2 g/day) and longer supplementation periods (over 8–12 weeks) Mousavi2019Hadi2020.
Cinnamon’s Effects in Different Populations
While cinnamon appears to lower blood pressure in the general adult population, subgroup analyses suggest that the effect may be less significant in people with diabetes or metabolic syndrome . Some studies also indicate that the antihypertensive effect is more noticeable in individuals under 50 years old and those with a higher baseline body mass index (BMI ≥30 kg/m²) Mousavi2019Hadi2020.
Mechanisms and Additional Health Benefits
Cinnamon is thought to exert its antihypertensive effects through its antioxidant, anti-inflammatory, and cardiovascular-protective properties Mahmoodnia2017Al-Joubouri2024. Animal studies have shown that cinnamon can reduce blood pressure even in the presence of insulin resistance, possibly by lowering circulating insulin levels and improving glucose metabolism . In addition to blood pressure, cinnamon supplementation has been associated with improvements in lipid profiles, such as increased HDL cholesterol and decreased LDL cholesterol Shirzad2020Nawaz2024.
Clinical Trials and Case Studies
Randomized controlled trials in patients with stage 1 hypertension have shown that cinnamon supplementation can lead to a statistically significant, though clinically moderate, decrease in ambulatory SBP . A single case study also reported a reduction in blood pressure from 160/100 mmHg to 140/90 mmHg after two months of daily cinnamon tea consumption, along with improved cholesterol levels . Another clinical study in hypertensive males found that cinnamon intake was associated with reductions in both SBP and DBP, as well as weight loss and improved waist-to-hip ratios .
Safety and Recommendations
No serious adverse events have been reported in the studies reviewed, suggesting that cinnamon is generally safe when used as a supplement for blood pressure management . However, the overall effect size is modest, and cinnamon should be considered as a complementary approach rather than a replacement for standard hypertension treatments Mousavi2019Yazdanpanah2021Hadi2020+1 MORE.
Conclusion
Cinnamon supplementation can modestly lower blood pressure in adults, especially when used at lower doses over longer periods. Its effects are more pronounced in certain populations and may be accompanied by improvements in cholesterol and metabolic profiles. While cinnamon is safe and may be a useful adjunct in hypertension management, more high-quality, large-scale studies are needed to confirm its benefits and determine optimal dosing strategies Mousavi2019Yazdanpanah2021Hadi2020+1 MORE.
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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