Does ginger raise blood pressure
Pro Research Analysisby 
Searched over 200M research papers
Consensus Meter
The Impact of Ginger on Blood Pressure: A Comprehensive Review
Introduction to Ginger and Blood Pressure
Ginger (Zingiber officinale) is a widely used spice and traditional medicine known for its potential health benefits. One area of interest is its effect on blood pressure (BP), a critical factor in cardiovascular health. This article synthesizes findings from various studies to determine whether ginger raises or lowers blood pressure.
Ginger's Hypotensive Effects in Human Studies
Systematic Reviews and Meta-Analyses
A systematic review and meta-analysis of clinical trials have shown that ginger supplementation can significantly reduce both systolic and diastolic blood pressure. The pooled analysis from six randomized clinical trials involving 345 participants indicated a reduction in systolic BP by 6.36 mmHg and diastolic BP by 2.12 mmHg, particularly in studies with participants aged 50 years or younger, a follow-up duration of 8 weeks or less, and ginger doses of 3 grams per day or more.
Randomized Controlled Trials
Several randomized controlled trials (RCTs) have explored ginger's effects on blood pressure. One double-blind RCT involving diabetic patients found no significant effect on systolic or diastolic BP with ginger supplementation compared to a placebo. However, another study with healthy subjects reported a significant reduction in both systolic and diastolic BP with a 100 mg/kg dose of ginger.
Animal Studies on Ginger and Blood Pressure
Hypotensive Mechanisms
Animal studies have provided insights into the mechanisms by which ginger may lower blood pressure. For instance, ginger extract has been shown to induce a dose-dependent fall in arterial BP in anesthetized rats, mediated through muscarinic receptor stimulation and calcium channel blockade. Additionally, ginger's phenolic constituents, such as 6-, 8-, and 10-gingerol, have demonstrated vasodilatory effects, contributing to its hypotensive properties.
Combined Effects with Other Substances
Research on the combined effects of ginger and other substances, such as garlic, has also been conducted. A study on laboratory animals revealed that both single and combined doses of ginger and garlic significantly decreased diastolic BP and improved lipid profiles, suggesting a potential cardio-protective effect.
Ginger's Impact on Specific Populations
Diabetic Patients
In diabetic patients, ginger supplementation has shown mixed results. One study found that ginger intake did not significantly reduce BP in people with type 2 diabetes. However, another study reported significant improvements in systolic and diastolic BP, as well as other metabolic parameters, in diabetic patients with non-alcoholic fatty liver disease.
Postpartum Hypertension
A study on postpartum hypertensive mothers found that red ginger nanoparticle extracts significantly reduced both systolic and diastolic BP over a two-week period, suggesting its potential as an adjunct therapy for managing postpartum hypertension.
Conclusion
The current body of evidence suggests that ginger generally has a hypotensive effect, lowering both systolic and diastolic blood pressure in various populations and experimental settings. While some studies report no significant impact, the majority indicate that ginger can be beneficial in managing blood pressure, particularly in younger individuals and those with specific health conditions. Further research with standardized dosages and larger sample sizes is needed to confirm these findings and establish definitive guidelines for ginger supplementation in hypertension management.
Sources and full results
Most relevant research papers on this topic