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Coenzyme Q10 (CoQ10) — Frequently Asked Questions

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Frequently Asked Questions

Should I take CoQ10 if I am on a statin?

It is worth considering. Statins inhibit HMG-CoA reductase, which is upstream of both cholesterol and CoQ10 synthesis, so statins reduce blood CoQ10 levels by 20-40%. Some patients experience muscle pain (myalgia) on statins, and CoQ10 supplementation (100-200 mg/day) may help. Evidence is mixed but the safety profile is excellent. Discuss with your physician.

Ubiquinol vs ubiquinone — which should I take?

Ubiquinol (the reduced, active form) is generally preferred because it has 3-6 times better bioavailability than ubiquinone. This difference becomes more important with age, as the body becomes less efficient at converting ubiquinone to ubiquinol. Younger individuals (under 30-35) can usually use ubiquinone effectively. If in doubt, choose ubiquinol.

Does CoQ10 improve athletic performance?

Results are mixed. Some studies show modest improvements in time to exhaustion and reduced fatigue, particularly in older or less-trained individuals. Young, well-nourished athletes are unlikely to be CoQ10-deficient and may see minimal benefit. CoQ10 is not in the same performance tier as creatine, caffeine, or beta-alanine. Its primary value for athletes is antioxidant protection and long-term mitochondrial health.

Full Coenzyme Q10 (CoQ10) Guide

References

  1. (). The effect of coenzyme Q10 on morbidity and mortality in chronic heart failure: results from Q-SYMBIO. JACC: Heart Failure. DOI
  2. (). Effects of acute and 14-day coenzyme Q10 supplementation on exercise performance in both trained and untrained individuals. Journal of the International Society of Sports Nutrition. DOI
  3. (). Effect of coenzyme Q10 on myopathic symptoms in patients treated with statins. American Journal of Cardiology. DOI