Coenzyme Q10, or CoQ10 for short, is an important nutrient for cellular production of energy. This function is especially important for organs with high energy requirements such as the heart, liver, and kidneys. CoQ10 levels can drop as we age and supplementation is recommended. Anyone who is on anti-cholesterol medications called statin drugs should be aware that these medications may further reduce CoQ10 levels. CoQ10 is also an antioxidant that can be used for the maintenance of good health.