Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Eucommia ulmoides (杜仲, Du Zhong) is a traditional Chinese medicinal herb historically used to support liver and kidney health, as well as to strengthen bones and tendons. Its application for hypertension, while rooted in traditional practice, has been supported by emerging scientific evidence. Several preclinical studies and small-scale clinical trials have demonstrated that extracts of Eucommia ulmoides can lower blood pressure in hypertensive animal models and humans. Proposed mechanisms include vasodilation via nitric oxide pathways, inhibition of angiotensin-converting enzyme (ACE), and antioxidant effects that protect vascular endothelium.

In clinical research, some randomized controlled trials have shown modest but significant reductions in systolic and diastolic blood pressure among hypertensive patients taking Eucommia extracts compared to placebo. However, these studies often have small sample sizes, short durations, or methodological limitations. A few meta-analyses and systematic reviews suggest that Eucommia ulmoides may be effective as an adjunct to conventional antihypertensive therapy, but stronger evidence from larger, well-designed clinical trials is still needed.

Overall, while there is a traditional basis for its use and growing scientific data supporting its antihypertensive properties, the current level of evidence is moderate (rated 3/5), and Eucommia ulmoides should not be considered a substitute for standard medical care in hypertension management.

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