Turmeric (Curcuma longa) and its active component curcumin have positive effects on blood pressure (BP). Multiple studies have shown that turmeric and curcumin can lower blood pressure and improve cardiovascular health.
One study found that the intake of turmeric extract can reduce blood pressure and pulse wave velocity (PWV) and increase antioxidant capacity and total polyphenol levels in urine. Additionally, another systematic review and meta-analysis confirmed that turmeric and curcumin significantly modulate triglycerides, total cholesterol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol levels in the blood of adults with metabolic diseases.
In animal models, turmeric and curcumin have shown effects on lowering blood pressure through antioxidant, anti-inflammatory actions, and inhibiting calcium ion concentration interference, β2-adrenergic receptor activation, and angiotensin-converting enzyme (ACE) activity. Furthermore, black turmeric tea, as an adjunctive multi-modal treatment, has shown potential in alleviating hypertension in salt-induced hypertensive animal models.
Although some studies point out the bioavailability issue of curcumin, various methods have been proposed to improve its absorption, such as using piperine as an adjuvant or preparing curcumin in nanoparticle form. These improvements are expected to enhance the clinical application of curcumin.
Based on the comprehensive search of the literature, it can be concluded that turmeric and its active component curcumin have positive effects on lowering blood pressure and improving cardiovascular health. However, it is important to note that despite the positive research results, more randomized controlled trials (RCTs) are needed to validate these findings and explore more cardiovascular risk factors. Additionally, given the heterogeneity among different studies, future research should be more cautious in interpreting these findings.
