Coenzyme Q10 (Coq10) for Blood Pressure Regulation

Research suggests that CoQ10 may have blood pressure-lowering effects, with multiple reviews citing its potential to reduce vascular oxidative stress and preserve nitric oxide availability as plausible mechanisms underlying this benefit. Studies indicate that several narrative reviews and mechanistic analyses from 2004 through 2025 generally support CoQ10's role as a nutraceutical with cardiovascular relevance, including applications in hypertension and even hypertensive pregnancy complications such as preeclampsia. However, the evidence is not uniformly positive — at least one 2022 randomized controlled trial found no significant reduction in systolic or diastolic blood pressure in people with metabolic syndrome, and a 2006 review concluded that evidence for effectiveness in hypertension was lacking at that time. The body of research is composed largely of reviews rather than high-quality clinical trials, which limits the strength of conclusions that can be drawn, and further well-designed RCTs would be needed to establish more definitive findings.