Small daily doses of peppermint oil reduce systolic blood pressure in adults

A study of 40 adults with mildly elevated blood pressure found that taking 100 microliters of peppermint oil twice daily for 20 days lowered systolic blood pressure by an average of 8.5 mmHg, while a placebo group showed little change. The inexpensive oil was well-tolerated. Researchers suggest it could serve as a simple additional option for managing high blood pressure.