Coenzyme Q10 (CoQ10) is a fat-soluble compound found in the mitochondria of every cell, where it participates directly in the electron transport chain that generates ATP, your cells' primary energy currency. It also functions as a potent antioxidant, protecting cell membranes from oxidative damage.
Your body produces CoQ10 naturally, but production declines with age. The decline is gradual and begins in your mid-20s to 30s, with more noticeable reduction after 40. Statin medications, which are widely prescribed for cholesterol management, further reduce CoQ10 levels because statins block the same enzyme pathway (HMG-CoA reductase) that the body uses to produce both cholesterol and CoQ10.
Low CoQ10 has been associated with fatigue, muscle weakness, reduced exercise tolerance, poor recovery, and cardiovascular concerns. Because CoQ10 is concentrated in tissues with high energy demands (heart, brain, kidneys, skeletal muscle), these are the systems most likely to be affected when levels drop.
This blood test measures your circulating CoQ10. It is particularly relevant for people taking statins who experience muscle symptoms, those with unexplained fatigue, people with cardiovascular concerns, and anyone investigating age-related energy decline.
Suited to people taking statin medications (particularly those experiencing muscle symptoms), anyone investigating unexplained fatigue or reduced exercise tolerance, people with cardiovascular concerns, and those wanting to assess their CoQ10 status as part of a broader energy or ageing investigation.
