Peppermint oil may offer an unexpected benefit for people with mildly elevated blood pressure. In a small study, adults who took a low dose of peppermint oil twice daily for 20 days experienced an average 8.5 mmHg reduction in systolic blood pressure, while the placebo group showed little change. The findings suggest peppermint oil could potentially have a role as an additional approach to blood-pressure management. However, more research involving larger and longer-term clinical trials is needed before it can be considered an established treatment. People with hypertension should not replace prescribed medication with peppermint oil without medical advice. Its potential benefits need to be weighed against safety, dosage and individual health conditions.
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