Coenzyme Q10 is a compound your body produces naturally and requires for basic cellular energy production, first isolated by American researcher Frederick Crane in 1957. Unlike most entries in this Atlas, CoQ10's medical interest arose directly from pharmacology: researchers noticed that statin medications appeared to reduce the body's natural CoQ10 levels, leading to the hypothesis that supplementing CoQ10 might help offset statin-related side effects.
This pharmacological origin story makes CoQ10 a genuinely interesting entry for understanding how a supplement's evidence can shift meaningfully over time as more and better research accumulates.
CoQ10's evidence for its most tested modern use — reducing statin-associated muscle pain — offers a genuinely instructive example of evidence changing over time. Earlier meta-analyses, including one published in Mayo Clinic Proceedings, found no significant benefit of CoQ10 supplementation on statin-induced muscle pain. However, more recent meta-analyses have reached the opposite conclusion: a 2019 meta-analysis of 12 trials (575 patients) and a 2024/2025 meta-analysis of 7 trials (389 patients) both found statistically significant reductions in statin-associated muscle symptoms.
This genuine disagreement between different meta-analyses examining essentially the same clinical question, at different points in time, is a legitimate scientific pattern rather than simple inconsistency. Every review, whether positive or negative, agrees that more rigorous, larger trials are needed. Given a real, actively-evolving evidence base with meaningful disagreement between rigorous meta-analyses, "Limited-Moderate" is the honest, transparent rating.
Not applicable in the traditional herbal sense — naturally produced by the body, obtained through diet (meat, fish, some oils), or taken as a synthetic supplement.