Coenzyme Q10 is a vitamin-like substance that plays an important role in generating cellular energy. The highest concentrations of CoQ10 are found in the heart, liver and kidney suggesting an important role for this nutrient.
CoQ10 is made naturally in the body, but deficiency may occur due to disease, low dietary intake, or high CoQ10 use by the body. Symptoms of deficiency include heart failure, high blood pressure, and chest pain. Depending on the cause of deficiency, supplementing with CoQ10 or increasing dietary intake may be effective.